Perhaps the greatest idea for a record ever. RRR 500 is just 500 locked grooves by 500 artists. The needle must be manually placed on each groove to hear it. I have owned two of these albums for years and I don't believe I have heard every track. Once, when I had two turntables and some housemates I fucking hated, I put on two different grooves at full volume, locked my door, and left for work. When I came home they were still going and I had a really funny passive aggressive note taped to my door. Of course this digitized sampling of each groove doesn't compare to actually manipulating the vinyl yourself, but it will have to suffice until you can get your hands on one (or more) of these. Some of the more notable contributors (some unwittingly) are: Little Princess, Deerhoof, Evil Moisture, Mortician, Bastard Noise, Neil Hamburger, Faxed Head, Masonna, and the ubiquitous Sonic Youth. Things like RRR 500 remind us that vinyl is still the coolest format there is and will ever be.