QT not playing AAC auido in video files

Hi,

I had previously re-encoded a few mkv file to mov using QT and they had been working fine until a recent update. now QT will not play any AAC files at all. I have perian installed and everything used to work in QT naively. It's not the files as the work fine using vlc. But i need them to working QT you use front row.

anyone else got this prob or know a fix?

I assume the recent update is 10.6.3? If so… this is a widespread problem. See discussion below.
Apple - Support - Discussions - since 10.6.3 - Quicktime: MPEG2 muxed ...

Apple has released 10.6.3 v1.1 today to address bugs with 10.6.3. Perhaps that will help. If not, you may have to wait on an update to Perian.