Fix A/V Sync Problems in .MP4 Free on Mac

out of sync in mp4

fix late audio

incorrect audio/video sync

audio sync problem

fix video sync problem

fix mp4 sync problem

sync issue in mp4

repair broken mp4

repair corrupt mp4

audio comes late

audio comes early

fix sync issues in m4v

fix sync issues in mpeg-4

mac

movie

audio

vlc

videolan

subler