I flashed myself a Jasper X360 and have no problems till this moment. Usually when the "Disk is unreadable" message pops out is because of bad media. Use only Verbatim DL and nothing else with iXtreme 1.5 firmware. Try rewriting one of the games to a Verbatim disk and tell us if this workes. If nit, then get it back to him although I dont think he did anything wrong with flashing its pretty easy operation if done right.