Not just illegal to copy and sell but illegal just to copy. Even for personal use.
If you are trying to copy or "backup" games or DVDs at some stage you'll need to circumvent some sort of copyright protection. Illegal.
Part of PCA website policy -
'Cracks' or copyright infringement - we do not permit the posting of information that will enable other people to use pirated software or to evade the copyright laws. Please do not post serial numbers or CD keys, or links to sites that contain file-sharing software or such information.