I'm not quite sure what is going on with one of my DVD rips. I was ripping RENT (Ripped at 100% Constant Quality, x264 Encoder, with file format MP4 with a Codec of AVC/H.264 Video/ AAC Audio) and when I tried to open and play after a succesful ripping, it read an error about Quicktime not being able to read the movie's file format. Any suggestions?