HOW TO CREATE CD DATA INTO ISO IMAGE?

plz help me..i need it ..i have playstation cds and emulator too...but direct thru cd rom always hanging..so i thnk i shud create a iso file n play dem..dat wil be better..plz help me how 2 convert cd data into iso or bin or bin.ecm...magic iso unregistered version works only for cd data of 350 mb i thnk..but i have more dan 600mb in each cd.can any1 tell me any software??