Hello,

I had previously posted with a problem creating .mov MP4's. However, I have recently discovered that the problem may be with file size, not with .mov or MP4 format.

It seems that if I leave the auto-computed target resolution alone at 640x352, the movie I was having trouble with works fine. The same movie target file was unplayable when I set the resolution to 720x400 DVD or 720x480 DVD 16:9. A different movie worked fine at 720x480 DVD 16:9.

What I noticed now is that the working movie file was just under 2GB (1.62), whereas the broken one was just over (2.17) GB to be specific. Is there a 2GB barrier that I'm running into?

Another thing I don't understand is that the working movie plays in QT player at a resolution of around 853x480, norman anamorphic DVD playback resolution. How can this be if I left the original computed target resolution at 640x352?

Also, I haven't found an explanation yet for why ffmpegX has started choosing 640x352 as the default resolution for a dropped file, instead of it's native resolution, which is I believe what it used to do.

If anybody could explain any of this I'd appreciate it.

As requested, I've uploaded a chunk of the broken file, it can be found at http://est.org/tmp/bad-movie.mov. created this using the dd tip that somebody posted. I'm not sure how useful this is because I tried it with the good movie, and that was also unplayable - so it seems this procedure generates a broken file.