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<blockquote data-quote="dipje" data-source="post: 29458" data-attributes="member: 12779">I don't know if this is acceptable for you or if it would even work,but I found that files encoded with x264 + he-aac in a MP4 container played fine from Windows Media Player, and played fine in MediaPlayerClassic, both on the machine I encoded them on and on my MediaPortal machine. But when viewing the .mp4 files from MediaPortal, it seemed to only reach around 5 frames/second, very choppy playback.This was already quite a time ago, who knows what is fixed in the current releases. Anyway, I couldn't figure it out, doesn't seemed to be a codec problem. In the end, I muxed the .MP4 audio &amp; video stream into a Matroska file (.mkv) and that one played fine! For that was acceptable so I stuck to .mkv for my TV-backups.As for the letterboxing (black bars), make sure that whatever subtitle-filter might kick in isn't set to 'padding'. Nero's decoder has an option like that ('Line21 / SP padding' or something like that) but it is disabled by default IIRC. VSFilter (VobSub) and FFDshow also have options like that, and those might be enabled by default.If you have a movie that is neatly 16:9 encoded, the subtitle filters expands it to 4:3 by letterboxing, so the subtitles are rendered into the black bars, and not over the video. This is perfect when you have a 4:3 display, but bullocks when you have a 16:9 display so turn it off <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />.The same might happen if the movie is 2,35:1 and you have a 16:9 display (1,78:1).Anyway, good luck.</blockquote>

[QUOTE="dipje, post: 29458, member: 12779"] I don't know if this is acceptable for you or if it would even work, but I found that files encoded with x264 + he-aac in a MP4 container played fine from Windows Media Player, and played fine in MediaPlayerClassic, both on the machine I encoded them on and on my MediaPortal machine. But when viewing the .mp4 files from MediaPortal, it seemed to only reach around 5 frames/second, very choppy playback. This was already quite a time ago, who knows what is fixed in the current releases. Anyway, I couldn't figure it out, doesn't seemed to be a codec problem. In the end, I muxed the .MP4 audio & video stream into a Matroska file (.mkv) and that one played fine! For that was acceptable so I stuck to .mkv for my TV-backups. As for the letterboxing (black bars), make sure that whatever subtitle-filter might kick in isn't set to 'padding'. Nero's decoder has an option like that ('Line21 / SP padding' or something like that) but it is disabled by default IIRC. VSFilter (VobSub) and FFDshow also have options like that, and those might be enabled by default. If you have a movie that is neatly 16:9 encoded, the subtitle filters expands it to 4:3 by letterboxing, so the subtitles are rendered into the black bars, and not over the video. This is perfect when you have a 4:3 display, but bullocks when you have a 16:9 display so turn it off :). The same might happen if the movie is 2,35:1 and you have a 16:9 display (1,78:1). Anyway, good luck. [/QUOTE]

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