Dune Firmware Zone

Dune HD Pro Vision 4K Solo

This version brings various new features and improvements previously implemented for new Dune HD models (such as Dune HD Pro One 8K Plus), see here for more details: https://dune-hd.com/firmware/proone8kplus/.

Note: because of big internal changes, this update could cause some regressions and new bugs (to be fixed in future updates).

Most noticeable improvements are listed below.

• Fixed various bugs specific for old models.

• Fixed various regressions, which were introduced in the previous r22 update for old models.

• Various fixes and improvements for media playback (fixed a lot of different problems, in particular, related to video playback, audio playback, subtitle playback, A/V sync and subtitle sync).

• Various fixes and improvements for GUI (in particular, related to main menu, file browser, My Collection).

• Some UI translations updated/improved.

• Minor other fixes and improvements. 

This firmware is a major update which brings various new features and improvements previously implemented for new Dune HD models (such as Dune HD Premier 4K Pro and Dune HD Pro One 8K Plus).

Note: because of huge internal changes, this update could cause some regressions and new bugs (to be fixed in future firmware updates).

Most noticeable improvements in comparison with the previous r21 firmware versions, include, in particular:

• Fixes support for online subtitles.

• Media tags (such as 4K, HDR, etc) for files. Media tags are automatically identified based on the actual file content, and additionally can be identified based on file name. Media tags are shown in File Browser and in My Collection. Media tags can be used as browsing filters in My Collection.

• Various improvements related to the video watching marks. The information about playback bookmarks from the "Recent" database is now used in more places to indicate the watching progress. You can now manually mark files and movies as watched and unwatched in POP UP MENU.

• A lot of possibilities to customize the lists of items shown in various menus. You can now customize the top menu and the left menu in the New GUI, the lists of applications, the list of sources, the list of favorite items. You can reorder items, hide items, and change the default item for the top menu. List customization is available in POP UP MENU.

• Additional APIs for Dune HD plugins, allowing plugins to implement various new features, such as: advanced support for P2P streaming, advanced support for IPTV services with huge number (thousands) of TV channels. Support for Dune Extra premium feature which may be required to enable some of the new APIs in the firmware.

• Small changes in the list of preinstalled apps.

• Various other improvements previously implemented in "Dune HD Media Center" app for ATV models (more details: https://dune-hd.com/support/app/versions.html).

This is a small update with small improvements (bigger updates will come with upcoming r22 versions).

• All models: Dune Extra: Added more APIs for next-generation IPTV and Movies plugins. Some other Dune Extra related improvements.

• All models: Improved compatibility with some SMB servers (such as some ASUS routers).

• All models: Improved support for My Collection in China.

• All models: Movies: When viewing person info, the maximum number of shown movies is increased from 64 to 256.

• All models: HDD sleep timer setting now has additional options: 1, 3, 5 minutes.

• All models: Sleep timer setting now has additional option: 20 minutes.

• Ultra Vision 4K, Max Vision 4K: Sleep timer by default is set to disabled.

• S905L2 models: Minor fixes in autoframerate logic.

• Models with front panel display: When playing streams with unknown duration (such as TV streams), now clock is shown instead of meaningless playback position.

• All models: Updated some UI translations.

• All models: Some other internal changes.

This firmware version is the same as the alpha firmware version 230606_0206_r21.

More details: history of alpha firmware versions.

This is a small update with important fixes.

• All models: Bugfix: Auto framerate switching could be wrongly used when playing a video preview in a small window in some cases.

• All models: Bugfix: Interlaced video could be wrongly detected as progressive in some cases, thus causing auto framerate switching to a wrong mode (for example, to 25 Hz insead of 50 Hz).

• All models: Bugfix: When KODI app was automatically installed (for example, as an external player), its audio settings could be set to wrong values and fixed to these values (disallowing the user to modify them). Now the user is responsible for proper configuration of KODI audio settings.

• All models: Bugfix: The procedure of upgrading firmware of Bluetooth remote could allow the user to install incompatible firmware version in some cases.

• All models: Improvement: Important fixes in some preinstalled apps.

• RTD1619/RTD1619DR models: Improvement: After factory reset, "digital audio output mode" setting is now set to "Auto" (which automatically enabled bitstream passthrough if the connected TV or A/V receiver supports it).

• All models: Minor other fixes and improvements.

This is a small update with important fixes.

• All models: Updated the list of preinstalled apps in different regions.

• RTD1619/RTD1619DR models: Optimized audio buffering and support for A/V sync correction.

• RTD1619/RTD1619DR models: Bugfix: DD audio passthrough via MediaCodec did not work in some cases.

• RTD1619/RTD1619DR models: Bugfix: GUI could be wrongly shifted a bit relative to the video in some cases.

• RTD1619DR models: Bugfix: Information about DV codec in INFO panel during playback could be wrong in some cases (regression introduced in r20).

• S905X3 models: Power on/off could work wrongly in some cases with some Bluetooth remotes.

• S905X models: BD Lite playback did not work properly in some cases (regression introduced in r20).

• All models: Minor other fixes and improvements.

This is a small update with important fixes.

• All models: Fixed bugs in SMB client/server functionality (regressions introduced in version 220630_0727_r20).

• Realtek models: Bugfix: When playing some BD images in Full BD Menu mode, some menu items could be invisible in some cases.

• Realtek models: Bugfix: When playing some BD images in Full BD Menu mode, timeline bar could be wrongly shown when not needed in some cases.

• RTD1619/RTD1619DR models: Bugfix: When playing some Internet streams in engine:1 mode, playback hangup could happen on playback stop in some cases.

• RTD1619/RTD1619DR models with Hi-Fi audio: Bugfix: When Hi-Fi audio output was enabled, Voice search via Bluetooth remote did not work.

• All models: Improved support for PNG images in PHP plugins and some other cases.

• All models: Updated some UI translations.

• All models: Minor other fixes and improvements.

This is a small update with important fixes.

• All models: Fixed bugs in SMB client (regressions introduced in version 220630_0727_r20).

• All models: Fixed bugs in handling of music file tags (regressions introduced in version 220630_0727_r20).

• All models: Fixed bugs in "Edit Movie Information" function in file browser.

• All models: Fixed bugs in handling of folder settings (sort order and view mode).

• RTD1619/RTD1619DR models: Optimized audio buffering and support for A/V sync correction.

• Traveler model: Optimized handling of lamp power and battery time.

• Real Vision 4K Duo model: Optimized fan handling.

• All models: Updated/improved UI translations for some languages.

• All models: New GUI: Global search function: it now searches not only for movies, but also for persons. Persons in search results can be browsed similarly to movies.

• All models: New GUI: Dune voice search UI: added a possibility to switch the voice recognition langauge between the choosen UI language and English. Useful when searching for English movies and the UI language is not English.

• All models: New GUI: Dune voice search UI: added a possibility to launch Google assistant from Dune voice bar.

• All models: New GUI: My Collection: Automatic reindexing can now be done more frequently than once per day (up to once per 4 hours).

• All models: New GUI: Various improvements for watch progress indication. Watch progress is now shown also for movies which are not part of the movie collection.

• All models: New GUI: Recent menu: improved handling of TV shows; some other improvements.

• All models: New GUI: Movie screen now provides "More.." button when there is more than one to watch a movie.

• All models: New GUI: Restored the possibility to search for movies also when using the old GUI version of My Collection app.

• All models: New GUI: Improved video preview. It could work wrongly and wrongly cause auto framerate function in some cases.

• All models: New GUI: Improved handling of absent or bad Internet connection.

• All models: New GUI: Improved possibilities for hiding uneeded UI functions by disabling built-in plugins in "Setup / Misc / Plugins" menu.

• All models: New GUI: Improved display of long texts in Netflix-like view.

• All models: New GUI: Improved handling of "No Internet" cases. Ensured that My Collection and other local content can be always accessed w/o Internet.

• All models: New GUI: Performance improvements and internal improvements for interaction with applications which embed their data into the new menu.

• All models: New GUI: A lot of other bugfixes and internal improvements in specific cases (various issues found during internal testing).

• All models: New GUI: Internal changes for next planned big improvements (such as media tags) (not ready yet, will come in next versions).

• All models: Added a special support for 2.35:1 displays (such as 2.35:1 projectors). It can be enabled in "Setup / Appearance / Advanced" menu. When enabled, the UI is scaled to fit into 2.35:1 area (with special handling of UI background) and subtitles are by default moved into this area.

• All models: Added a new parental control function: lock schedule (see "Setup / Misc / Parental Control" menu). Allows locking media player access during specified time periods. During these time periods, media player access can only be temporarily unlocked by a parental code (locked again automatically when entering standby or after 10 minutes on inactivity without media playback).

• All models: Online subtitles: Improved handling of episodes of TV shows.

• All models: Online subtitles: Can be searched in 3 languages now: chooses subtitles language, choosen UI language, and English.

• All models: Online subtitles: Many other improvements and bugfixes.

• All models: Improved compatibility with SMB1/SMB2/SMB3 protocols when browsing and mounting SMB shares in specific environments.

• All models: Improved automatic configuration of available services and preinstalled applications based on country.

• All models: Improved handling of country setting in Location menu (both country codes and country names are supported now).

• ALl models: Improved video framerate detection in some cases.

• All models: Music playback: Information from CUE sheet now has bigger priority, than information from the audio file.

• All models: Bugfix: Music banner could be wrongly shown for a short time when starting video file playback.

• All models: Bugfix: When playing video files, photo files present in the same directory could be wrongly shown in Dune Control mobile app as covers for the played file.

• All models: TV plugins: PLAY button on TV plugin in Favorites menu now works the same as in Apps menu (can be used to quickly start TV playback).

• All models: TV playback: added support for HLS streams of type "Event" (available when using "engine:1" playback engine), including the possibility to pause and timeshift the playback.

• All models: Added correct handling of external storage devices formatted as Android storage. Previously such devices wronly appeared in Sources menu.

• All models: Bugfix: Text in Right-to-Left languages (such as Hebrew) was wrongly displayted in Dune Control mobile app.

• All models: Bugfix: Switching IPTV channels via P- did not work in some cases.

• All models: Bugfix: Adjusting subtitle time offset did not work in some cases.

• All models: Bugfix: Shortcuts to NFS folders in Favorites menu did not work in some cases.

• All models: Bugfix: When adding a shortcut to a movie to Favorites menu, movie poster could be lost in some cases.

• All models: A lot of other bugfixes and improvements when playing specific files and streams (various issues found during internal testing).

• Realtek models: SMB server: upgraded to a newer Samba version.

• Realtek models: SMB server: improved compatibility with newest Windows versions.

• Realtek models: SMB server: added new setting: SMB1 support enabled/disabled (by default, it is enabled; when enabled, SMB server supports all SMB versions: SMB1, SMB2, SMB3; when disabled, SMB server supports only SMB2 and SMB3).

• Realtek models: SMB server: added new settings: user name, password, password enabled/disabled (by default, it is disabled; enabling password may be helpful when accesing Dune SMB serfer from newest Windows versions, which prohibit password-less access by default).

• Realtek models: Added automatic firmware update for the new Dune Remote R3 Bluetooth remote (fixed the problem that this function, which was added in previous firmware versions, was not actually working.)

• Realtek models: Improved handling of external USB DAC when used together with USB microphone and in some other cases.

• Realtek models: Added support for user fonts for subtitles (like it was previously available on Sigma models: choose a .TTF file in file browser, press ENTER, and choose "for subtitles"). Removed wrong mentioning of this function from the menu of other models which do not support it.

• Realtek models: Improved compatibility with specific HTTP/HTTPS streams.

• Realtek models: Bugfix: Playback of TS files via HTTP (such as from a streamed torrent) did not work in some cases.

• Realtek models: Bugfix: Auto framerate and auto resolution could work wrongly for Android apps in some cases.

• Realtek models: Optimizations to improve BD Menu playback performance in specific cases. Not well tested, so disabled by default. Try to enable in case of problems.
    • For experimental needs, these optimizations may be manually enabled/disabled using the following DSF utility files (can only be used on the new firmware; effect is preserved till settings reset):
        • http://dune-hd.com/support/misc/dune_service_bdmenu_perf_mode1_enable.dsf
        • http://dune-hd.com/support/misc/dune_service_bdmenu_perf_mode1_disable.dsf

• RTD1619/RTD1619DR models: Optimizations to improve SMB (CIFS) client performance in specific cases. Not well tested, so disabled by default. Try to enable in case of problems.
    • For experimental needs, these optimizations may be manually enabled/disabled using the following DSF utility files (can only be used on the new firmware; effect is preserved till settings reset):
        • http://dune-hd.com/support/misc/dune_service_rtd1619_smb_perf_mode1_enable.dsf
        • http://dune-hd.com/support/misc/dune_service_rtd1619_smb_perf_mode1_disable.dsf

• RTD1619/RTD1619DR models: Optimizations to improve overall system performance; solves performance problems with playback of very high bitrate 4K DV content in specific cases (known to help, in particular, with playback from SMB shares and NTFS HDDs). Enabled by default.
    • For experimental needs, these optimizations may be manually enabled/disabled using the following DSF utility files (can only be used on the new firmware; effect is preserved till settings reset):
        • http://dune-hd.com/support/misc/dune_service_rtd1619_memory_perf_mode1_enable.dsf
        • http://dune-hd.com/support/misc/dune_service_rtd1619_memory_perf_mode1_disable.dsf

• RTD1619/RTD1619DR models: Optimizations to improve NFS client performance. Enabled by default.
    • For experimental needs, these optimizations may be manually enabled/disabled using the following DSF utility files (can only be used on the new firmware; effect is preserved till settings reset):
        • http://dune-hd.com/support/misc/dune_service_rtd1619_nfs_perf_mode1_enable.dsf
        • http://dune-hd.com/support/misc/dune_service_rtd1619_nfs_perf_mode1_disable.dsf

• Realtek and S905X3 models: Extended auto framerate setting with new option "prefer double framerate".
    • When it is used, 25-30p content is played in 50-60p modes; otherwise 25-30p content is played in 25-30p modes (if the required 25-30p modes are supported).
    • Note: it useful only when 4K video mode is used (25-30p modes are supported for 4K resolution on all platforms), and also on RTD1619/RTD1619DR models when 1080p video mode is used and 25p content is played (only RTD1619/RTD1619DR models support 1080p25 video mode).
    • On S905X3 models, this new feature is supported only for internal player; on Realtek models, it is supported both for internal player and for Android apps.

• RTD1619/RTD1619DR models: Added support for 1080p25 video mode.

• RTD1619/RTD1619DR models: Improved detection of 25p and 50i content for auto framearte.

• RTD1619/RTD1619DR models: The number of volume level steps increased to 32.

• RTD1619/RTD1619DR models: Improved subtitles display for some languages (arabic, thai, hebrew).

• RTD1619/RTD1619DR models: Added support for playback for specific MP4 files with huge number of tracks.

• RTD1619/RTD1619DR models: Improved compatibility with some Blu-ray images.

• RTD1619/RTD1619DR models: Optimized 3D depth effect when playing BD3D (it could be slightly wrong in some cases).

• RTD1619/RTD1619DR models: Added possibility to manually switch "left/rigth eye first" mode when playing BD3D in Menu mode (it was not working before).

• RTD1619/RTD1619DR models: Improved automatic detection of "left/right eye first" mode when playing BD3D in Lite mode.

• RTD1619/RTD1619DR models: Improvements in DVD-Video playback engine.

• RTD1619/RTD1619DR models: The setting "Playback / Control / UP/DOWN buttons" is extended with a new option "Fast forward/rewind". It allows using UP/DOWN buttons as FF/REW for file and BD Lite playback (DVD-Video: FF/REW were already available via UP/DOWN; BD Menu: FF/REW were already available via P+/P-; UP/DOWN are reserved for BD Menu navigation).

• RTD1619/RTD1619DR models: Bugfix: Volume control via HDMI CEC did not work properly in some cases.

• RTD1619/RTD1619DR/S905X3 models: Warning about Bluetooth remotes which require firmware update but have low batteries is now shown less frequently.

• RTD1619/RTD1619DR/S905X3 models: Bugfix: Google voice services did not update to a newer version.

• All models: PHP API: Improved HTTPS support (SSL libraries updated to a newer version).

• All models: Minor changes in the list of preinstalled applications.

• All models: Updated/improved UI translations for some languages.

This firmware version is the same as the alpha firmware version 220317_0257_r20.

Includes a new version of the user interface (New GUI). More details: New GUI.

The new version of the user interface is used by default. The old version can be chosen in "Setup / Misc / Appearance" menu.

Includes a lot of other bugfixes and improvements. More details: history of alpha firmware versions.

• RTD1619/RTD1619DR models: Fixed: Picture could be absent in some cases on TV screen during media player loading.

• Ultra Vision 4K, Max Vision 4K, Pro Vision 4K Solo: Added support for the new hardware revision (minor changes for CE power saving requirements).

• Ultra Vision 4K, Max Vision 4K: Setting "POWER button behavior" by default is set to "Power off".

• Ultra Vision 4K, Max Vision 4K: Sleep timer by default is set to 3 hours.

• Added function to automatically spindown connected HDDs after inactivity. This is supported both for USB and SATA HDDs. The period of inactivity can be set using the new setting "Setup / Misc / Power management / Auto HDD sleep on inactivity". By default this function is disabled.

• All models: Improvement: Improved autoframerate handling for 720p23 content (prefer 1080p23 in this case, when possible).

• All models: Bugfix: Subtitles in some languages (such as Thai) were displayed with too small glyphs in some cases.

• All models: Bugfix: If a huge HDD was formatted by the media player into ExFAT filesystem, it could be not accessible on Windows 10 PC.

• All models: Bugfix: when playing video files, the initial audio track could be wrongly chosen in some cases.

• All models: Bugfix: NFS UDP could be wrongly used instead of NFS TCP in some cases.

• Realtek models: Bugfix: Wrong subtitle/audio track could be chosen automatically in some cases.

• Realtek models: Bugfix: picture adjustment settings were not remembered in some cases.

• RTD1619DR models: Bugfix: Playback crash could occur when playing DolbyVision or HEVC files.

• SmartBox 4K and SmartBox 4K Plus models: Bugfix: "P-" button did not work in some cases.

• Added support for new SmartBox 4K Plus II and Real Vision4 4K models.

• Minor other fixes and improvements.

This firmware version is the same as the alpha firmware version 211224_0317_r17.

A lot of bugfixes and improvements.

More details: history of alpha firmware versions.

• This version adds a lot of Dolby Vision related improvements, as well as some other improvements.

• New feature: Dolby Vision decoding and output is now supported also when playing all other popular file formats:
    • MKV P7 FEL single-track (dual-layer)
    • MP4 P7 FEL single-track (dual-layer)
    • TS P7 MEL/FEL single-track (dual-layer)
    • TS P4 MEL/FEL single-track (dual-layer)
    • MP4 P7 FEL dual-track
    • MP4 P7 MEL dual-track

• Dune HD media players now have the widest support for Dolby Vision file formats among all existing media players (all popular formats supported by any other media player are supported, and no other media player supports as many formats). The list of supported Dolby Vision file formats now includes:
    • Blu-ray disc images:
        • BDMV (Menu mode) P7 MEL/FEL
        • BDMV (Lite mode) P7 MEL/FEL
        • BD ISO (Menu mode) P7 MEL/FEL
        • BD ISO (Lite mode) P7 MEL/FEL
    • M2TS files:
        • M2TS P5
        • M2TS P7 MEL/FEL dual-track
        • M2TS P8
    • TS files:
        • TS P4 MEL/FEL single-track (dual-layer)
        • TS P5
        • TS P7 MEL/FEL single-track (dual-layer)
        • TS P8
    • MKV files:
        • MKV P4 MEL/FEL single-track (dual-layer)
        • MKV P5
        • MKV P7 MEL/FEL single-track (dual-layer)
        • MKV P8
    • MP4 files (this also includes MOV files):
        • MP4 P4 MEL/FEL single-track (dual-layer)
        • MP4 P5
        • MP4 P7 MEL/FEL single-track (dual-layer)
        • MP4 P7 MEL/FEL dual-track
        • MP4 P8 (this includes support for iPhone Dolby Vision MOV P8.4 files)
    • NOTE: In all cases, Dolby Vision extended information from the file is used and output to TV, i.e. it is a real playback of Dolby Vision video.

• New feature: Dune HD Dolby Vision Purifier engine. It optimizes and remuxes Dolby Vision video on-the-fly to make it as compatible with Realtek RTD1619 media processor as possible (completely preserving all the details of the original video streams). This helps to ensure stable playback and prevent playback problems (such as stuttering, hangups, A/V desync) caused by encoding issues in specific files and incompatibilities between these files and Realtek media processor. As the result, Dune HD media players have the most stable Dolby Vision playback among all RTD1619-based media players. It is especially useful when playing not the 100% exact images of Blu-ray discs, but various manually created and remuxed files, which are often created using non-professional tools and often have muxing errors and problems.

• Improvement: Fixed various problems with playback of various Dolby Vision files (with the help of the new Dune HD Dolby Vision Purifier engine).

• Improvement: HDMI CEC functionality rewrote to fix various problems (it was not working in many cases). HDMI CEC settings extended. Now you can control the media player by TV remote, configure if the media player should be switched on/off when the TV is switched on/off, and configure if the TV should be switched on/off when the player is switched on/off.

• Improvement: Built-in HDD format function extended to more properly support huge (12TB+) HDDs.

• Improvement: Built-in HDD format function improved to ensure better compatibility of the formatted HDDs with various operating systems.

• Improvement: Improved compatibility with NTFS and HFS+ HDDs formatted by various other devices and operating systems.

• Improvement: Optimized the read-write performance of NTFS and HFS+ HDDs.

• Improvement: Various small improvements and fixes in "HDMI Input" application. (For models with HDMI input.)

• Improvement: After settings reset, the initial setup screen shows a hint describing how to pair the Bluetooth remote.

• Bugfix: Jumping between chapters in Blu-ray menu could work wrongly in some cases.

• Bugfix: When playing files with DTS HD MA audio tracks, A/V desync could happen in some cases.

• Bugfix: When playing MKV files with ASS/SSA subtitles, playback crash could happen in some cases.

• Bugfix: Adjustment of picture brightness/contrast/saturation/hue did not work properly during Dolby Vision playback.

• Bugfix: Playback of DASH video streams by the internal player could wrongly handle some errors in the stream in some cases.

• SDK: New feature: the dune_param parameter "engine:3" can be used to force the use of Hi-Fi internal audio player.

• Minor other fixes and improvements.

• This version adds various Dolby Vision related improvements.

• New feature: Dolby Vision decoding and output is now supported also when
  playing separate M2TS P7 (MEL and FEL) files. NOTE: Dolby Vision extended
  information from the second video track is used and output to TV, i.e. it
  is a real playback of Dolby Vision video (as previously already supported
  for BDMV folders and BD ISO files).

• New feature: You can now force Dolby Vision output (in both LLDV and STD
  DV modes) even if the media player believes that the connected TV does
  not support Dolby Vision. To do so, just set "Setup / Video / HDR and
  Dolby Vision settings / Dolby Vision output mode" to "LLDV" or "STD DV"
  (instead of "Auto"). This feature can also be potentially used instead of
  EDID-editing function in "HDFury" devices for output of LLDV Dolby Vision
  to projectors, i.e. it can allow you avoid to need to buy the "HDFury"
  device.

• Bugfix: When outputting Dolby Vision, HDMI disconnect/reconnect or TV
  on/off could be handled in a wrong way.

• Bugfix: When outputting Dolby Vision, screen burn prevention function
  (screensaver) could be handled in a wrong way.

• Bugfix: Dolby Vision output did not work in some cases for some Panasonic
  TV models (which support both Dolby Vision and HDR10+).

• Bugfix: When playing Dolby Vision, playback hangup could happen after
  some time in some cases.

• Bugfix: BD-J program on some Dolby Vision Blu-ray discs (such as "Dolby
  UHD Blu-Ray Demo Disc") could not properly detect that the player
  supports Dolby Vision.

• Bugfix: Some incorrectly manually converted images of Dolby Vision
  Blu-ray discs could be played incorrectly. NOTE: To ensure that you get
  the proper Dolby Vision picture, it is recommended to play the exact
  (1:1) copies of original discs; manually converted (muxed) disc images
  may contain muxing errors which may cause Dolby Vision to not work
  properly.

• Minor other fixes and improvements.

• The first firmware version recommended for this model.

• In comparison with the initial "r15" firmware version, which was
  preinstalled at the factory, this version adds the following.

• Dolby Vision decoding and output when playing the following types of
  content:
    • Blu-ray disc images:
        • BDMV folder played in Full Menu mode, P7 MEL and FEL.
        • BDMV folder played in Lite mode, P7 MEL and FEL.
        • BD ISO played in Full Menu mode, P7 MEL and FEL.
        • BD ISO played in Lite mode, P7 MEL and FEL.
    • Files:
        • MKV P5.
        • MKV P7 MEL single-track.
        • MKV P8.
        • MP4 P5.
        • MP4 P7 MEL single-track.
        • M2TS P8.
        • NOTE: Dolby Vision support for other file variations is planned
          to be improved in further firmware updates (priorities: M2TS,
          MKV, MP4).
    • NOTE: In all these cases, Dolby Vision extended information from the
      original video stream is used and output to TV, i.e. it is a real
      playback of Dolby Vision video, and not just a conversion of the
      HDR10 base layer to Dolby Vision via VS10 engine.

• "Setup / Video / HDR and Dolby Vision" menu with the following settings:
    • "HDR processing mode":
        • Determines how the media player processes SDR, HDR and Dolby
          Vision content.
        • "Auto": choose the preferred output format automatically based on the played content
          (output SDR for SDR video, HDR for HDR video, DV for DV video).
        • "HDR always": always output HDR (convert SDR to HDR).
        • "SDR always": always output SDR (convert HDR/DV to SDR).
        • "SDR BT.2020 for BT.2020 video": output SDR BT.2020 when playing BT.2020 video.
        • "HLG always": always output HLG HDR (convert SDR to HDR).
        • "Dolby VS10 engine always": always use VS10.
        • "Dolby VS10 engine for video": use VS10 when playing SDR video.
        • "Dolby VS10 engine for HDR video": use VS10 when playing HDR video.
        • "Dolby VS10 engine for DV video": use VS10 when playing DV video.
        • "Dolby VS10 engine for SDR, HDR video": use VS10 when playing SDR or HDR video.
        • "Dolby VS10 engine for SDR, DV video": use VS10 when playing SDR or DV video.
        • "Dolby VS10 engine for HDR, DV video": use VS10 when playing HDR or DV video.
        • "Dolby VS10 engine for SDR, HDR, DV video": use VS10 when playing any video (but not in the main menu).
        • Default is "Auto".
        • NOTE: VS10 may be useful even when playing non-DV content and
          when outputting to non-DV TV, because of the following reasons:
            • VS10 improves picture quality and minimizes the effect of
              "posterization" ("banding") due to more advanced 12-bit video
              processing.
            • VS10 improves the quality of SDR to HDR and HDR to SDR
              conversion.
    • "Dolby Vision output mode":
        • "Auto": choose LLDV or STD DV automatically based on TV
          capabilities and preferences.
        • "LLDV": prefer to use LLDV. (Dolby Vision processing is led by
          the player.)
        • "STD DV": prefer to use STD DV. (Dolby Vision processing is led
          by the TV.)
        • Default is "Auto".
    • "Dolby Vision 4Kp50/60":
        • Choose "Disabled" if your A/V equipment supports DV only up to
          4Kp30 (e.g. some old TV models did not support DV 4Kp60).
        • Default is "Enabled".

• New feature: The fan speed can be adjusted via "Setup / Misc / Power
  managment / Fan" setting. Default is "Auto".

• Improved compatibility with some Blu-ray disc images when using full menu
  mode.

• Bufix: when playing some Blu-ray disc images in full menu mode, subtitles
  could be wrongly activated by default when not needed.

• Bugfix: when playing video files, the initial audio track could be
  wrongly chosen in some cases.

• Minor other fixes and improvements.

• NOTE: This firmware is based on a different Realtek 1619 SDK version (not
  the same as used in "r15" firmware versions, so it may have a different
  set of issues and limitations in comparison with "r15" firmware
  versions).

• NOTE: In comparison with the previous firmware version 210202_1854_r17,
  this firmware version fixes the following problems: severe video
  stuttering and A/V desync occuring in some cases, Dolby Vision not
  working for BD ISO images in Lite mode, missing Google Play / ATV, total
  hangup of the player (with the need to do a factory reset via the
  Recovery menu).

• NOTE: If you previouslly installed the 210202_1854_r17 firmware version,
  it is recommended to do a factory reset ("Setup / General / Reset
  Settings") before updating to this version, to reduce the risk of
  encountering "total hangup of the player" problem and the need to do
  factory reset via the Recovery menu.

The first firmware update provided for Pro Vision 4K Solo and Max Vision 4K
models. This version has critical problems, it should not be used. The next
version 210214_0333_r17 is recommended instead.