iTunes - QT file somewhere

[Bryan Forbes]

Hi:

I was curious if anyone knew how to do this ... I noticed iTunes has 
some videos that can be viewed in the iTunes (I believe as a quicktime 
file, I'd be very surprised if it was something else).  Video 
downloaded nice ... looks good etc.

This is my question ... the video is cached somewhere on my machine, 
because it's doesn't have to redownload the song/video, it just plays 
it like a normal QT file, when you hit play.

Where is that file located ... hidden within iTunes somewhere or 
somewhere within the OS ...

TIA

Bryan F.