cdrw drives i test them by using that same adapter and burn a disk. Heck a 2 cent disk is worth it. and just burn like a 1 mb file to it and you can use the same disk for like 600 drives. Ram you have to have a machine or test rack to test that stuff. Im seriously considering building a test rack for in my shed. Maybe ill start looking into it with my next major escrap pickup if I can get enuff good parts.