Re: PSP
Anything that reads a disc does but most aren't powerful at all. The ones in the PSP will be the same as a mini-disk player and not only are they weak (1-5mW) but they are small, built into a heat sink but also almost look like a small chip with a glass cover. When I opened up an old MD player I found it like that, you wouldn't be able to use one of those.
The only disc drive with a decent powerful red diode would be a DVD+/-RW drive for a PC. If you don't have one spare you can always buy one really cheap on eBay.