Akai S1000 / S1100 samplers

I just got an old Apple 600e CD-ROM which has been quoted to work 
with the S1000 units. I have brand new SCSI 50 pin to 50 pin 
Centronics cables hooked up between the CD Rom and my S1000PB. I put 
a sample CD in that the guy I bought it from burned of the 4.40 
software and some samples on it and I can't get the damn thing to 
read it. I set the SCSI ID channels for the S1000 and CD Rom to 
different channels, like the manual said and it doesn't work. I read 
the manual and it doesn't help with SCSI utilies outside of Internal 
Hard Disk and SCSI MIDI functions. Is the S1000 supposed to 
automatically recognized the CD or do I have to go through another 
soft key menu? The guy I bought it from had the SCSI card installed 
and used it with a CD ROM and said the whole rig worked fine. I think 
I'm just screwing something up. Do I have to use a terminator on the 
CD ROM? I admit that I know squat about SCSI hardware. Could it be 
the CD or the SCSI card? I'm getting a factory Akai format CD of 
samples in the mail soon and I want to make sure I can load those 
samples.