[Matroska-users] RE: [Matroska-general] how can I covert mkv files into to avi?

Fermin Quant ferminquant at hotmail.com
Mon Jan 21 18:54:03 CET 2008

Actually, the reason I want to turn them into avi was because I want to make them smaller, and I don't know how to manipulate the mkv files. Becuase I have 24 minutes episodes of 250-300 MB, and I want to turn them to about 90 MB, by turning them into 170MB avi then into 90MB RMVB, that was my original plan.
But since its not possible because of the VFR, could you tell me how to make the mkv files smaller?

> Date: Mon, 21 Jan 2008 14:33:04 +0100
> From: chris at matroska.org
> To: matroska-users at lists.matroska.org; ferminquant at hotmail.com
> Subject: Re: [Matroska-general] how can I covert mkv files into to avi?
> Fermin Quant schrieb:
> > I've been trying with an mkv file I found on the internet to extract 
> > the video and audio separately and rejoining them into avi, but with 
> > no succes.
> > I tried with most of the tools you have on your site, but none of 
> > those are able to get the video out properly or even convert the audio 
> > to mp3.
> > From your experiences, which is the best way to convert mkv files into 
> > avi files?
> This email belongs into matroska-users, not matroska-general. Please try 
> to respect that for future communication.
> Trying to convert MKV files into AVI files is big nonsense, to start 
> with. MKV was created to overcome the limitations of the old, redundant 
> AVI container. AVI was created about 20 years ago by Microsoft, and then 
> abandoned for their own, better (but closed) WMV/ASF format/container. 
> All the extensions to AVI which were added lateron were never really 
> successful, mainly because most existing tools/apps for AVI handling, 
> with Virtualdub being the most important, couldnt make use of them. AVI 
> by itself is not even VBR MP3 capable, at least not in a clear manner.
> I recommend to convert your MKV files into DVDs if you would like to see 
> them in your saloon/living room on your DVD player, thats the safest way 
> and will preserve most of the quality of the MKV file (of course, 
> depending on what video/audio codecs were used in your MKV). Some video 
> streams in MKVs, especially anime material, are VFR (Variable Framerate) 
> and these video streams can no way be put into AVI, no matter what video 
> codec you are using to recompress it, as AVI is bound to have a dixed 
> time delay from one frame to the next (CFR = Constant Framerate). 
> DVDs/MPEG on the other hand is VFR capable (in principle, not sure if 
> thats true for every DVD player out there), as its younger and more 
> modern than AVI.
> The best tools to convert MKVs into DVDs are probably S.U.P.E.R. and 
> Convert-X-to-DVD. For the latter there is a link on our homepage, 
> technical/guide section, bringing you to a guide on how to use this 
> tool. Using DVDSanta - as described on our homepage - is not recommended 
> anylonger, as its developers are too stupid or not interested to fix 
> even some of the more important bugs this program has, especially when 
> trying to open MKV files.
> Best Regards
> Christian
> matroska project admin

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