Hmm, theres a way, do yo have any disc repair shop at your location maybe? In fact they can polish the disc with a special tool to make a clean surface (its for sale online too, but that costs around 60$ and don't think that's worth it lol)
erm It will cost alot of petrol to go to get the disk cleaned, so I have bought a new copy from Amazon.. was a bit hard to go through the system this time round hehe but got a copy coming ..
