Just bought a used Matshita Panasonic BD-MLT uj265, PC hangs


I just bought this used Matshita uj265 off ebaysuccessfully burned 2 Blu ray discs, drive still hangs at time and make my Small Form Factor PC freeze, when I burned 2 blu ray discs found scuffs on there surface and the burn disc quality scans reveals really bad disc, I think I got a lemon.


Do you use it with an external adapter?