Here's a good description of the NeXT's optical drives: http://www.thegogglesdonothing.com/archives/2010/03/next_optical_discs.s... Dan Noyes on 18 Apr 2013 Comments Submitted by Paul Pinkstaff (not verified) on 05 May 2013 Permalink I have two "working" NeXT I have two "working" NeXT Cube machines. (At least they worked the last time I turned them on.) On is the regular small screen balack and white, and the other is a NeXT Dimension machine. In my using of the next boxes, I never got the optical disk to work. I do not think I have any pictures of my NeXT boxes posted on my WEB site. This would be a good time to do that.