i click on install, disc 1 goes fine then it goes through disc 2 to about 70-75% and freezes and does nothing, i've left it for something like 5minutes before hoping it would continues but it doesnt

theres no deep scratches on the discs only light surface ones.
and clean toilet paper?? CLEAN TOILET PAPER!!!! hold on, i think i'm all out..... what about a hamster?