I've been ripping TV Shows to AVC format for awhile to use with my Ipod. The Quality is great given the File size. But the thing I notice even moreso now on my X30 is how these files eat Battery life. I watched 3 half hour shows today and my fully charged battery was done. Going to Mpeg 4 and keeping the same quality at least doubles the file size. So it's kind of a mixed blessing with TCPMP's new ability to play AVC.