Join Date: Jun 2003
Location: South Austin & San Marcos
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MKV is a Wrapper for a variety of formats. The mkv in some cases IS just plain old H264. Subler is a Mac program that can strip the mkv wrapper away without re-encoding. It just doesn't handle some surround formats as well as one could hope. It also will help modify subtitles if desired. But the point is the way everyone talks about mkv's as a Format is not correct, it's a wrapper, a container, one that can hold many formats within it. With the correct software that will strip the wrapper off a H264 MKV without doing any transcoding there should be no sync issues or anything else as nothing has really been modified. Now if the MKV is a shell for a AVC Codec hiding something other than MPEG4 then that will change the way you deal with it to be iTunes compatible. Transcoding rears it's ugly head.
I'm a Mac user and have to get the MKV out of the equation if I want to use the latest OS, find software that will deal with it on the fly because Perian doesn't work with QuickTime anymore, or pass it off to a external device (WDTV in my case) that will play it on a HDTV. I've been dealing with the odd MKV headache here and there for years.
Sony HX929, WDTV, AppleTV, PS3, Custom 7.1 Speakers, MacPro, iPad Air 2 & iPhone 6 Plus