The PerfectWave Transport that I owned used an off-the-shelf computer grade drive. I forgot what brand it was but this information is available on PSA's forum. If you were willing to take the unit apart you could replace the drive with a standard $15 CD drive from Amazon. I don't know if other PSA models used an Oppo drive but the PerfectWave Transport certainly didn't (unless Oppo used an off-the-shelf rotgut computer drive that is not designed to spin music CDs). I may be wrong about this but I'm pretty sure that Oppo didn't make their own drive. There are only a few companies that manufacture CD drives that are designed for playing music. Phillips, Teac, Marantz, and a couple others. Most of the companies making CD players and transports source their drives from one of these manufacturers. The fact that PSA bought the cheapest drive they could find - one that was designed to spin up, read data, and spin down - instead of playing music for hour after hour, is unforgivable..
When PSA would no longer support the unit I decided to replace the drive myself (three drives had failed by then). The procedure was clearly spelled out in a PSA forum thread but it required the use of all-thread screws which you could get from PSA. I wrote an email but got no answer so I called and the guy told me that they no longer supported this model. I told him that I would put a new drive in myself but I needed the all-thread screws. He told me that they no longer had them. I said, "OK, then just tell me the specifications of the screws and I will buy them myself." He refused to even give me the specs on the screws.
Needless to say, I will never purchase anything from PS Audio again. Ever.