Hate to agree with Jorkany - but if you feel you're buying bunk disks off eBay, I'd rather see you just download them and not fill the pockets of scumbags. "Piracy" vs. some guy doing piracy to scam people out of coin on eBay, I know which one I'd take.
If they aren't originals, they are likely merely only worth the media they are printed on, in my findings with eBay.
