Get Perian to work in Lion I've been trying to get Perian to work in Lion, basically QuickTime simply refuse to play any files other than the standard QuickTime supported file types (Perian is supposed to add this functionality).

I tried uninstalling Perian and installing it again, but doesn't seem to be working. From a quick google search it seems that so many people has this problem, and some of them seems to get this working again by reinstalling but I didn't. Anyone got any ideas how to fix this?

It looks like a widespread problem. Tried following all those tips without luck. Maybe someone can tell me which things to delete in /Library/QuickTime?

Edit: I found the ticket(http://trac.perian.org/ticket/622) and the developer says that this is not Perian bug and they won't fixed it.
Another shot in the dark...but this page suggests downgrading to Perian 1.2.2 on Lion (see "Solution 1"). 


  The latest version 1.2.3 of Perian doesn't work on Mac OS X Lion. So if you have a Mac running Mac OS X 10.7, say, Lion, you have to downgrade the previous version, say 1.2.2. The version of 1.2.3 of Perian does not support QuickTime 10 in Lion and  fails to fix the loss of audio after one second in xvid files with ac3. So if you have a Mac with Lion, converting video to QuickTime is highly recommended.


However, that particular page is all about how to play AVI files with Quicktime, so it may not work, but might be worth a try?