I actually think I saw a system like this at the local computer surplus place about a year ago. It had a display like a Microfiche viewer with a MO disk drive and a hard copy output connection to a laser printer. Somewhere I have one of the disks. *****PREPARE FOR LONGWINDED COMMENTS***** I'll bet the data is not in a standard format. The hospital where I work has lots of MO disk using systems, CT scanners, data backups for patient monitoring, Cardiology cath lab and they all use non standard data formats. The CT and cath lab are the worst they use a raw file structure that is directly read and written by the system. They also encode the data in a compressed format to pack more data on the disk. The MO disk media manufacturers are also not producing the media any more. I have several of the drives but we have never been able to read one of the disks without the drive it was originally created on. The venders consider the storage format proprietary and will not release it. Back 10-12 years in the past we reverse engineered the data structure that was on an LMSI 12" optical drive containing digital x-ray images. There was a hierarchy on the disk and the data was stored in a run length encoded format of the differences between different resolutions of the images. We made disks up with 1 image and then compared it to a blank disk, then added an additional image and repeated the process. We were eventually able to read the disks offline and purchased LMSI drive to connect to our VAX. We have this exact problem today, a SCSI MO disk from a GE CT scanner and no system to read it. We kept the drive but there is no software. GE will sell you a system with software to read the disk for $20,000 or transfer an individual disk for a fee. Mike