I have the oldest model available and a C type laser does surely help. I think v6+ will take +R, but anything below is ok with -R. The only issue you might find is with the laser, and an older one might be too worn out to read burns. The older ps2s are harder to mod, and some have strange problems that pop up, but they would not have the annoying anti-piracy stuff of v7+ and are better built to deal with physical shocks and accidents. You decide.
SCPH-10k-Mint | SCPH-10k M2Pro+Sharkdrive | 120" scrn w/ 2000W+ (19.4 DTS), cat (unmodded)