there werent 10,000 pressed of the slim shady ep, no where near that many, there were 1000 pressed, official copies, and there were between 500-1000 promo's, which had a plain white cover with black text and were missing the tracks no ones iller and murder murder.
the og slim shady ep was a silver cd, not green/blue like the proffesional looking copies which are sold on ebay now...
it probably worth around $150.(OG) the web entertainment barcode is anyother way you can tell wether its og or not.
infinite was NEVER released on cd.