WHAT SHOULD I DO?!?

I have spent the last week or so looking at all these messages on how people have troubles burning the CD. But i dont even know where i should start. Where do i get the files for the DC games, do i rent them and do something with them or can i get the files right off the net and burn. Someone please give me there input, i would most appreciate it.

Bark Bark
Siddogman