David Conrad <umovi...@gmail.com> added the comment: Looks like flash defines a slightly different layout for the chpl box than Nero did.
Specifically, it excludes the 4 bytes that noone knows what they're for, and defines the containing box to be 'moov' rather than 'udta'. Thus it appears to barf when fed with Nero's format. One addition: they define version to be 0 whereas all the Nero chapters I've seen use version 1, so it's possible Nero changed at some point too, but e.g. VLC, GPAC, and libmp4v2 read the additional 4 bytes unconditionally. ________________________________________________ FFmpeg issue tracker <iss...@roundup.ffmpeg.org> <https://roundup.ffmpeg.org/issue2068> ________________________________________________