can someone please help me

i have been trying to figure out how to backup my dreamcast games and i don't know what to use. i have a hp cd-writer 9300 series and was wondering if i need gd-roms or if i can use cd-r's? if someone can help it would be so helpfull. also if i need gd-roms where can i get them?

[BOT]

Blank GD-Roms can be had by breaking into Sega and stealing them.
While you are there you had better steal a GD Burner as well.
You cannot buy them!