http://bugs.winehq.org/show_bug.cgi?id=58717
--- Comment #3 from Ian superian@gmail.com --- Regardless of the container format - .mov / .mp4 / .m4a - it seems that it's always encoded with what VLC calls
Video: H264 - MPEG-4 AVC (part 10) (avc1) Audio: MPEG AAC Audio (mp4a)
I can upload a sample saved video, if that would help.