Don't get them at guitar center their selection sucks and you'll get burned on price. All they ever have is M Audio Studio sessions I got one of them and i wasn't impressed and Reason Refils which are good if you have Reason but pretty useless if you don't, unless you wanna work with raw wav files. They also have stuff that only work on particular soft synths like Emulator and sampletank and shit like that. If I were yo I'd check out Ebay, they practically give away sample CDs up in there