I have recently been ripping some blurays to file format for Apple TV. (I sell them used and make more room the shelf) I am curious how the quality of the self-ripped film compares to the iTunes HD version. I currently rip using the disc's original bit rate. I end up with a file size of aprox. 13gig with a bit rate of 15.45Mbit/s. I notice that iTunes lists their file size as much smaller than 13gigs. Does this matter much? What kind of bit rate can you expect from the HD iTunes version? For best quality: iTunes or self rip?