Muxing/Demuxing Help Please

[joelancer]

I have muxed and demuxed .avi and .ogm files in the past with Vdubmod. Im not an encoder.

I demux files at times to do a few things, witch are... demux subtitle files to fix translation/typo's, and then re-mux them back together... demux audio tracks to get rid of a sertin launguage and re-mux them back to save file space.

But i now possess some high quality .MKV files(possibly Variable frame rate).... witch i wont to demux just to fix subtitle errors, and get rid of a few audio tracks(no editing bsides the subtitles), and i do not wont to screw anythings up with these High quality encodes, so it makes me question if...

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)1| - could one program be better at demuxing/muxing a sertain file type then another program? [i DONT mean, example - one program being faster then another] [i mean, example - one program being able to properly demux a file containing VFR or sertain codec types, were as another program may not beable to properly output the same file without errors in the output file??)

)2| - IF IT DOES make a difference witch progam you should use to Demux/Mux a sertain file type container, then witch programs should be used to demux .OGM and .MKV ?

[stephanV]

for OGM just use VirtualDubMod

for MKV use MKVToolnix or AVIMux GUI. (preferably the firsts)

[joelancer]

you suggest MKVToolnix.... how does that reference to question #1? is MKVToolnix just more versitile? or does it actually have propertys that are nessessary for MKV files witch Vdubmod would not beable to properly handle?

Thx for the info. But im also looking for answers to the above question to gain a basic understanding so i wont make mistakes when running across future file type containers.

[stephanV]

MKVtoolnix can handle VFR streams (VDM will give a warning messsage when such a file is opened)

You have to realise that since the last version of VDM (more than a year ago now?), Matroska has advanced considerably and thus is the Matroska support in VDM hopelessly outdated. It can't handle many of the streams (e.g. VobSubs, RealVideo, native H.264, Wavpack) you might encounter in a Matroska file.

As OGM has seen no development since the last VDM it is still safe to use for that.

[joelancer]

thx man, exactly the info iw as lookin for.

was a noob question, but i didnt know if it mattered that a program needed to support a particular kind of stream, since i was only looking to direct-streamcopy. All clear now, Thx.