I have now used Roxio Popcorn on an iMac G5 and an Intel Core Duo iMac, and there is a definate difference. I have a Panasonic DVD player, and the DVDs I burned with Popcorn on the G5 work fine... The DVDs I burned with Popcorn on the Intel iMac do *not* work... My Panasonic DVD player doesn't even recognize the disk. I'm using DVD+R media.
Since this is roxio.com, can someone from Roxio respond to this?!?! And are there other people having this problem?