mkv to dvd conversion problem

[castor-t]

I've been converting mkv files to dvd for awhile now. Usually a 1.0 GB to 1.5 GB 45min 720P mkv file using mkvextract to extract the audio, then using AVISynth and CCE to encode the video. This has worked with everthing so far but now I have a 3 hour, 11GB 720P mkv file and CCE encodes only roughly half of it and then the resulting mpv file plays too slow. In other words, the mpv file is only the first half of the mkv, and it plays at a 3 hour length. I've been successful with 4 gb 720P mkv's, but this 11 gb doesn't seen to want to work. Does anybody have any ideas what happening or any other suggestions to get this to a dvd9 with good quality.

Here's the AVISynth script I used:

DirectShowSource("G:\video.mkv",fps=23.97598565277 02,audio=false)
LanczosResize(720,480)

I did 5 passes with CCE.

Any help would be appreciated. Thanks.

Adam

[jolson]

It *may* be a problem with file size/RAM amount needed for such a big file, but it may also be the contents of it.

Have you checked what's really in the mkv container, does it differ from the files you succeeded with? Do they contain XviD, h.264 or something else? Any special variant (PAFF?) of h.264?

Try to cut the mkv into three parts and run each one separately, maybe there's a glitch where CCE stops. Just do one-pass CCE for testing.

[castor-t]

I'll try to cut it and see what happens. I don't really know how to check the mkv container. How would you do that and what's a good program to cut an mkv? Thanks for your help.

edit: found this in media player classic properties -

Video: MPEG4 Video (H264) 1280x720 29.97fps [Video]
Audio: Dolby AC3 48000Hz stereo [Audio]

I guess I messed up the frame rate for one. I'll change to fps and try again.

[45tripp]

download mkvtoolnix.

open the mkvmerge gui.
Under the 'global' tab are file splitting options. (by size, by time, how many files to split to)
also use mkvinfo of the package to get info on your file

[castor-t]

Okay I split the file. I'll try a 1 pass encode of the split file and a 1 pass encode whole file with the frame rate changed to 29.97. The other files I used are all 23.97 fps. Thanks again guys.

[castor-t]

changing to the correct frame rate did the trick. Imagine that! Thanks for all the help guys. I'll try to be a little more thorough next time.