PSIO

With the PSIO add-on for the Playstation 1 you can play games from a SD-Card. It also supports CDDA and XA audio channels and most of the classic games are supported. To use this add-on you have to solder a switchboard on the mainboard that will automatically switch between the disc drive and the parallel port.

Here are some images that show the PSIO in action:

PSIO Image 1 PSIO Image 2 PSIO Image 3 PSIO Image 5 PSIO Image 6 PSIO Image 7 PSIO Image 8 PSIO Image 9 PSIO Image 10 PSIO Image 11 PSIO Image 12 PSIO Image 4