whether to buy a dvdr or not buy a dvdr??

[badlung]

okay, generally my backed up ps2 games work fine, on neo 4 chip, however some of them seem to want to take off they spin that fast, is this a general problem? or/and is this because they are dvd rips, as i suspect? and is it really gunna be worth buyinng a dvdr? or just order games on dvd? or cdr? for £8 and £1 per disc respectivley?
Thanx for your help.