[MTUSUPPORT]

You might try slowing the Speed down to 4x for Write. You do this under the Tools Menu\Speed Selection. Uncheck Auto, and then set the Writing Speed to 4x, and see how this works.

Some players have to have Specific discs to correctly play a copied disc, this all depends on the Manufacturer.

Also does this player work fine with the Original Discs? If not, then try cleaning the Player with some compressed air.