thanks folks!
Tuco, I should have further explained that it was the output through the CompressHD which was causing me grief
Great post btw and to be honest, I hadn't even thought of using Compressor to convert the avi into a prores file so I'll be doing that from now on
I've been using MPEG streamclip, which does do a good job, but I'll see how compressor fairs.
Regarding the compressHD, I found the issue - for whatever reason and even though the ATV says it will take 1280x720p, the compressHD card has a setting for 960x540p which works perfectly.
This card is a touch expensive and I hope to use it for client youtube and blu ray files (as well as ATV and i-devices), but man, is it EVER fast. Cranks out an ATV standard def movie in 15 minutes.
I dupe the movie, dump 1 into MetaX, tag the details (family trips, special days etc..) and the ATV file is ready go to. The quality is far better than compressor in case anyone ever wants to check this card out. WOW!
Thanks again for your help - truly appreciated.
Cheers,
Keebler