DVD decrypting speed

[4sure]

Hi I have a pioneer A105 S DVD - 16x I believe, and I've just fited a 4x DVD Ricoh in my brothers PC. Here's the thing... my brother's DVD will decrypt at speeds averageing around 3.6x using DVD Decrypter... the best I can get form mine is only 1.7 average. Both are set up to use DMA if available - though I have seen little difference if enabled or not, and mine has a faster 7200 RPM HDD, my hard disk is one an on board promise ATA 100 controller. Any ideas why my DVD seems to rip so relatively slowly ?

[pinoy2201]

some DVD's are just hard to rip..for example i ripped my Joe Dirt DVD and it took me like Ten minutes with the speed of 6.3x but with my Final Fantasy DVD it took me 30 mins wit the speed of 2.0 this happens with DVD's with more features and extra's