That question is frequently asked at http://club.cdfreaks.com/ . There's also a big list of them at videohelp.com. I don't think you'll find any current ones that don't go at least 16X and do double layer. Newegg has a bunch at ~$40 for an internal, ~$80 external. I'd look to cdfreaks for a suggestion. I got a Samsung in an I/O Magic case and paid about $40 for it.