Hi RGTAA,
The SCSI port on the PSR9000 is looking for a SCSI device to be attached to it (CD, Hard disk, zip drive etc.) The PSR9000 is the master here and the drive, CD or whatever is the slave. Now if you try to attach a computer to the PSR9000 via the SCSI port ?!? ...What options (connections) do you have on the computer - none, unless the computer has a SCSI drive as its hard disk, then you can connect to the back of the hard disk only. There is a SCSI to USB cable convertion available but this will only attach a SCSI device (disk,CD, Zip or whatever) to a computer via tha computer's USB port (the computer will remain the master in this case). This will not get you any further down the track with the PSR9000. If you use the (German made?)USB board avialable for the PSR9000, then you will be able to see the PSR's hard drive from the computer but not the computer's hard drive from the PSR.
I hope that this is of some help for you.
Jon.