MicroVax II update

Progress on getting the MVII up and running: I ordered the SCSI2SD adapter and it has come in, the plan is to use it as the system disk on the MVII. The hobbyist VMS PAKS have arrived and I was able to download the VMS 7.3 iso, not sure what I can do with it since I think it must be burned to a 512 byte sector CD. I asked if the PAKS were good for older versions of VMS, like 5.5, and was told yes they were. We'll see about that. The Hobbyist VMS CD I had for VMS 7.2 was found and I was able to get the old Toshiba CD drive to work on the MV 4000 using a CQD 223A. How can I create an image of these CD's on the VAX 4000 that I could use in an emulator? I wasn't able to get the UC07 to see the CDROM because of a bad SCSI cable, I had hoped to format the SCSI2SD using the UC07. Is it possible to use the SCSI2SD on a microPDP-11 under RT-11? I ask because of the disk size limit under RT-11. Doug