Would like to learn how to make backups! Thanks

[onepound]

Hello everyone!

My name is yaoska, I would like to learn how to make a backup for my son. He has been scratching his games up and i have to buy a new one each time... what a wast of money... please help me learn how to make a back up thanks... let me know what i need such as programes and so on....
I have a sony computer with a dvd and cd burner, is that all i need, if not please help thanks... sorry but I'm new at this and the help would be nice thanks....