Playing imported .mov backwards

Hi all,

Perhaps this question has been asked before, but I can’t seem to find the right answer or hint @ google, so I thought I’d try here.

Okay, I’ve got a imported .mov file on the stage and when I test the movie, it plays and loops nicely. What I want to do is, when I rollOver, the movie rewinds or plays backwards.
Now, I’ve tried some thing with prevFrame();, but this only seems to work on ‘regular’ movieclips, not imported .mov files.

Anyone here who could give me some clues or hints on this?
Ow, I’m using Flash CS3.

Somebody? … Anybody? …