converting mv4/mp4(ipod videos) to other formats

[kutabachimaeyo]

I'm have queried and searched all over this site to no avail. I have only come up with results on how to convert avi's and dvd's to ipod compatible formats. I need just the opposite. I have some .m4v's and .mp4's (i read that they are the same thing) and i need them to be avi's for my creative zen.

From what i have read mp4 is like an avi container and i need to extract the video and audio streams and mux them into an avi. I have tried YAMB(mp4box.exe) and mp4ui to do this. Neither seem to work.
https://www.videohelp.com/forum/archive/t232659.html
I read this guide to do this.

If someone could show me some extrators that will work that would be awesome.

[celtic_druid]

mp4ui is old and for instance doesn't support AVC extraction I don't think. yamb/mp4box should work fine, unless the files contain DRM.

Demuxing AVC is probably a waste of time anyway as your Zen probably doesn't support it. Same would go for the audio.

[kutabachimaeyo]

I was planing on using VirtualDub to convert the the video steam to one of the many codecs my zen does support and to create the avi, and an audio converter for the audio stream.

Yamb just stayed at 0% when i tried to extract the streams. But it did tell me that it was avc1/h264 for the video, which explains why mp4ui couldn't extract the stream.
https://forum.videohelp.com/viewtopic.php?p=1460260&highlight=mp4+divx#1460260
This tread helped me. I think the author had the same problem as me. Some suggest that super could convert everything at once. It worked well but the quality might have suffered a little. Probably because h264 is better then divx. SUPER wouldn't work with the m4v's though but i found out you can just change the extension to .mp4 and it will work fine.

Right now i'm tring to find out how to crop out that annoying black line that appears on the right side of mp4's sometimes.

Thanks for all your help and i hope this thread helps someone with the same problem as me.

[olyteddy]

If it plays in VLC you can use that to transcode.

[|bond|]

if the mp4 file you have is a correct mp4 file yamb/mp4box shouldnt have a problem extracting the stream

as this doesnt work i assume there is something wrong with your file. note that .m4v files are normally raw mpeg-4 asp video files (not inside .mp4), maybe you have one of those
(apple had the braindead idea to also use the same extension, but well there is no need to discuss this ignorance)