Ripping futurama season 3

[SnOwDrAgN]

Hey quick question, I borrowed futurama season 3 and the 1st and 4th discs are giving me problems - I can't view them on my pc or laptop (just pauses at the intro screen) and when I try to rip using DVD shrink i get the error "CDvdCSS::Read Failed!" Same error on both my desktop and notebook.

Is this some sort of copy protection? Why is it that disc 2 and 3 ripped fine? This is quite strange, I haven't had any problems with other DVDs ever!

Thanks for any help.

Marcus.