Scam!
Site is owned by a douchebag called Craig justice.
The site claims it's Mission is to "help remixers/producers/musicians to make great music." It makes you believe that you by joining their V.I.P Membership club (and donating) will be able to get acapellas, instrumental, and multitrack recordings.
All the files on the site are password protected, meaning that you should send an email requesting password.
After donating I heard nothing back from the guy running the site. When mailing him asking for password he was very rude, and said I needed to donate again - I heard similar stories from a lot of djs and mashup producers. Secondly what the owner of this site does is illegal, he sells the promotion he got from the record companies, or found on the net. Don't waste your time or money on this kind of scam.