Burning FF7 Disk Help

[binodbdrchand]

Hello Friends.
I wanted to make copies of my FF7 disks (3, already ripped) onto my computer so that I may be able to burn them at later date if they become unreadable. I believe these copies are what people call ISO images. How can I make them? Can I just copy each folder for folder and burn at later date and they will work just fine? Or do I need to follow some procedure? Any help will be welcome.

P.S. -
I've got ISO Buster 1.5
What if it can't read some secotrs due to scratches? Is it still possible to make copies of such games?