Please Help

[Ry]

Could somebody tell me how to copy my PS2 games. I already have a backup but I want to make copies of it. How do I do this?? What software do I use. I tried using Iso Buster and extracted the files to my hard drive then I used Nero to burn it on to a cd. It still didn't work. I use the GS2 to boot my backup games. I know this is pretty easy to do but I just can't seem to figure it out. Thanks for the help.