I saw that, but driverguide requires membership, yuck! Anywhere that doesn't require membership? Thanks anyhoo

Yeah, I popped it open earlier today and saw that its just a regular IDE drive, as I expected. Is it somehow locked to only being able to use the Sony drive thats already in it, or theoretically, can I put in one of my spare 40X drives, or maybe a hard drive? I know Micro-Solutions made Backpack external hard drives...did they use the same circuitry by any chance?