An .Avi file is an avi file... NO difference in what OS it's on. He can use VLC or download Perian (*swiss army knife of codecs) for Quicktime and play it through that.
Doug
can't use Perian because it's for OS 10.7 or higher.
so far the iMac automatically ejects the disk created on Win7 so we can't even try VLC to see if it would work.
has anyone used TransMac for what I'm trying to do.