Quicktime 7.6 bug
We’ve recently discovered a bug that alters the quicktime header data in the Playstation 3 presets that makes a file error come up when you try to play back videos encoded using the Playstation 3 setting. As far as we know its on the PS3 setting that has been affected and we are working on an update to fix this issue.
If you are still running on older version of quicktime the issue does not exist.