Problem demuxing mkv

[Thunderhit]

Hi, want to convert a mkv file to mp4. I demuxed it and got the video .avi and sound .aac
But I cant even open the .avi? Mediainfo says:
Codec MPEG-4 AVC
Codec/info: mpeg4 iso advanced profile
1920x1080 16:9 23,976 fps.
Why cant i open the avi? Then, I'm unable to create a mp4 container from it :-(

[martino]

Wouldn't the H264 video be stored as a raw h264 stream? Try to demux it again, but store the video as *.264 and then use avc2avi to mux it into an AVI file in order to play.

Oh, what program did you use to demux it?

[bond]

if you want to mux to .mp4, you dont need .avi

demux from mkv to raw .264 and mux this .264 to mp4 with yamb/mp4box

[Thunderhit]

Thx, got it to work with yamb/mp4box