That's the least of QT's problems. The idiotic way that modern QuickTime container files handle audio-visual sync has caused the entire format to fall out of fa

That's the least of QT's problems. The idiotic way that modern QuickTime container files handle audio-visual sync has caused the entire format to fall out of favor within the professional video industry. The video and audio streams within such files are, by design, out of sync, and requires playback within QuickTime to actually get the file to play back properly, as the content creator intended. Workarounds exist, and some playback software can handle the problem internally, but VLC in particular is not always able to.