From:	MERC::"uunet!CRVAX.SRI.COM!RELAY-INFO-VAX"  6-OCT-1992 23:10:38.39
To:	info-vax@kl.sri.com
CC:	
Subj:	Re: CD-ROM drives on VAX/VMS Systems


WHD0675@RITVAX.ISC.RIT.EDU (Walter H. Dick) writes:

>How compatable are the RRD40 and RRD42 SCSI based CD-ROM drives with other
>SCSI based systems.  In other words, can I use them on other SCSI based 
>machines with any reasonable amount of success?  In addition, what is the
>difference between an RRD40 and RRD42?  Thanks in advance!

There's a jumper on the RRD42 to select the default block size. On a VMS system,
the jumper is in the 512-byte/block position. To use the RRD42 on a non-VMS
system (such as a PC), the jumper should be set to 2048 bytes/block. I believe
that removing the jumper will do this.

Perry Donham
VMS Training