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<blockquote data-quote="jamieo" data-source="post: 292738" data-attributes="member: 53052">Done some digging on this and the mkv specs do allow for a '<a href="http://www.matroska.org/technical/specs/index.html#FlagDefault" target="_blank">forced </a><a href="http://www.matroska.org/technical/specs/notes.html#Track_Flags" target="_blank">flag'</a> in addition to the 'default flag' - therefore it seems the latter is only intended to indicate the default should the user enable subtitles while the former would force their display without any user interaction as with a dvd's forced subtitles.Unfortunately, I cannot find any software with the ability to set the forced flag (although it should be a simple operation).&nbsp; It seems this is a problem going back as far as <a href="https://www.bunkus.org/bugzilla/show_bug.cgi?id=128" target="_blank">2005</a>/<a href="http://lists.matroska.org/pipermail/matroska-devel/2004-November/002144.html" target="_blank">2004</a>...This is only a problem for forced subs though and does not change the fact that MP still ignores and overrides the default flag...edit: Out of interest I hex edited a file to set the forced flag to true - it is correctly read by mkvinfo but at least in MP and MPC with VSFilter/Haali it is ignored.&nbsp; Of course, while most mkv files have the default flag set I doubt many implement the force flag - but I'm considering making a small app that could set these flags without remuxing as I cannot find one so far...It would be really great if MP read in the default and forced flags and activated the correct tracks - perhaps it could use the output from mkvinfo initially although the file looks to be easily parsable (I did it with a hex editor and ctrl-f!).&nbsp; With both flags correctly implemented MP would handle mkv playback better than any player I've tried!</blockquote>

[QUOTE="jamieo, post: 292738, member: 53052"] Done some digging on this and the mkv specs do allow for a '[URL="http://www.matroska.org/technical/specs/index.html#FlagDefault"]forced [/URL][URL="http://www.matroska.org/technical/specs/notes.html#Track_Flags"]flag'[/URL] in addition to the 'default flag' - therefore it seems the latter is only intended to indicate the default [i]should[/i] the user enable subtitles while the former would force their display without any user interaction as with a dvd's forced subtitles. Unfortunately, I cannot find any software with the ability to set the forced flag (although it should be a simple operation). It seems this is a problem going back as far as [URL="https://www.bunkus.org/bugzilla/show_bug.cgi?id=128"]2005[/URL]/[URL="http://lists.matroska.org/pipermail/matroska-devel/2004-November/002144.html"]2004[/URL]... This is only a problem for forced subs though and does not change the fact that MP still ignores and overrides the default flag... edit: Out of interest I hex edited a file to set the forced flag to true - it is correctly read by mkvinfo but at least in MP and MPC with VSFilter/Haali it is ignored. Of course, while most mkv files have the default flag set I doubt many implement the force flag - but I'm considering making a small app that could set these flags without remuxing as I cannot find one so far... It would be really great if MP read in the default and forced flags and activated the correct tracks - perhaps it could use the output from mkvinfo initially although the file looks to be easily parsable (I did it with a hex editor and ctrl-f!). With both flags correctly implemented MP would handle mkv playback better than any player I've tried! [/QUOTE]

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