Can you use a ps2 boot disk to play copyed games ?
ANSWER: Yes if you have a modchip installed (e.g. NE02.2)

Can the ps2 read cd-rw's ?
ANSWER: Not with the proper laser settings.

Which is the best ps2 mod chip ?
ANSWER: Most popular is NEO2.2

Search the PS2 Forum on NEWBIE and look for my get you going guide.