Really, I ripped a dvd on my mini in 40 minutes and thought that was too slow.
I still use my old XP P4 3 GHZ machine for movies. DVD Decrypter copies in 15 minutes , and DVD shrink takes about 15 to compress it and another 10 to burn with Nero, but I did change the hard drive to a SATA, so that makes a difference.
Mini 9 | OS X 10.6.7 | NBI 20100616212351| BIOS 05 | 32 GB Runcore | 2 GIGS RAM
10V | OS X 10.6.7 | NBI 20100616212351 |BIOS 06|160 GB|1 GIG RAM| 6 Cell Dell Battery
Back up Mini 9| OS X 10.6.7| NBI 20100616212351| BIOS 05 | 32 GB SuperTalent | 2 GIGS RAM