Dune/MKV Forced Subtitles
Dune has reportedly fixed this issue in 170519_1350_r11 firmware. No need for this special patch anymore.
The Dune does not honor the Forced flag in the subtitle streams. This causes problems with movies like District 9 that depend on subtitles being enabled.
To fix this problem, run this dsf file on your Dune. MKVs that have forced subtitles will have a brief hiccup when they begin to play. This is the subtitles being turned on.
(Reported not to work on the HD Lite 53D)
Before installing, if you have any of my older DSF files installed on your Dune, remove them by running dune_service_remove_all_execs.dsf and then rebooting. Install new versions afterward.
Note: uninstall before performing any firmware upgrade! You can reinstall afterward. If you've already done a firmware upgrade while installed, uninstall, do a hard reset (see dune_service_reset_settings.dsf) of the Dune, then reinstall.
If you're running firmware older than 131224_0132_b8, this older version works better:
Creating MKVs with forced subs
Using the mkvmerge GUI, be sure to set the Forced flag to True on the appropriate subtitle track.
If ripping from Blu-ray, you can use BDSup2Sub to extract only the forced subtitles from the disc; ClownBD can automate this step for you. See Dune/Forced subtitles with ClownBD.
Check the resulting MKV file with mediainfo to make sure the Forced flag is properly set on the subtitles:
Text #1 ID : 5 Format : PGS Muxing mode : zlib Codec ID : S_HDMV/PGS Codec ID/Info : The same subtitle format used on BDs/HD-DVDs Language : English Default : Yes Forced : Yes
How it works