NO. You will set both to Cable Select NOT Master Slave. I have the same MDD. This is explained in the manual. CABLE SELECT. Everything in MDDs is CABLE SELECT. DVR-105 on top. the 106 can write +R and +RW. But the Mac OS X won't support that capability and might not see it at all (I don't know). I would get the 105 at OfficeMax this week for only $150 after $30 rebate. OS X fully supports it. kunga10 (AIM) kunga47 (Yahoo Messenger with Cross-Platform dial-up Video sans audio on Macs) On Monday, August 11, 2003, at 01:05 PM, Erik Gilchrist wrote: > I will be putting it in as Master in my Dual 867 and moving the combo > drive in there currently to slave or to another machine.