Do you mean CD/DVD drives from computers? 99% of those have always been a #1 Phillips for me. I think it's worth my time, they only take a few seconds to pop off the cover. The board usually has some plastic tabs holding it in or screws plus a few cables. Some drives have the full board, which is very nice. Sometimes there's a small motor with two screws inside that I'll pull as well, it has a bit of brass on it. It's usually less than 30 seconds / drive. The rest is shred.