QT10.3 Interrupted Video Playback Not The Files.

Running QT 10.3 On OSX 10.9 on 15" MBP Mid '10.

Torrented several .m4v files (Seasons of NCIS) from TPB, all from the same user over a period of weeks. The first two downloads were fine, once I got the third, QT started acting up.

Video stops, audio continues for a second, then stops, while playback bar continues to rise. Pause, allow it to catch up (image will change), then press play, it will give another second of sound with stopped video. Pause it a second time, and once caught up, 5 minutes of uninterupted playback. This happens every 5 minutes, on every file I have played, whether associated with TPB or not. They all do it. Not a file problem, because most havent done it until this most recent download. I've tried the other NCIS files, the Supernatural, IT EVEN DOES IT TO ADVENTURE TIME! All the files were fine before.

I have over 200GB free on the HD, they are all stored locally, until I watch them and move them elsewhere, so it's not a bandwidth issue.

May not be QT specific, but posting here because I feel I'll get less PC Neckbeard Superiority than on the VLC forums. Oh yeah, the files do exactly the same thing in VLC too.

Sometimes, after I've had QT running for a while, Safari will act up too. When changing between tabs, it will stop, and it will update if I wait. It seems like the computer itself is freezing sometimes because I can't click anything but the mouse movement is unaffected.

From the few searches I have done, most people havent provided enough information for me to be sure, but Perian has been mentioned a couple of times. However that shouldn't affect VLC.