I'm really pleased with the level of interest shown in my little endeavour! To reiterate - even if you don't have a copy of Scenery Disk 12 lying around - if you have any memory of running this with MSFS 2, that would be a great help to me as I'm starting to question if it was ever intended to run with MSFS 2. This is all very interesting! I will PM you in relation to your community server - it would be great to engage with other like-minded individuals. You're very correct in respect of the non-standard sector copy protection SubLOGIC used, but they can be made to work with DosBox. I have them all working with MSFS 2 in DosBox (except SD12), including the very tricky Disk 9 (the one floating around the internet 'works' but has serious problems). There are other faithful emulators like PCE and 86Box that will run images of the disks including the non-standard sector copy protection so these are a bit easier but like on my actual hardware (physical 5.25" disk, floppy drive, MS-DOS 6.22 etc), an image of my physical Scenery Disk 12 won't work on these. I assume there are two possibilities - I have a bad SD12 disk or it was never made to work with MSFS 2. The goal is to get Scenery Disk 12 running with MSFS 2 in DosBox to complete my collection - the first step is to find a physical copy of both MSFS 2 and SD 12 that will work with each other. I've become very interested in the early years of microcomputing and to learn more about the various platforms that people remember so fondly - the IBM PC and Apple 2 and Commodore 64 and Atari 8-bit range and Amiga etc - all these computers that existed years before I ever got my first 486 PC - and to find out a little more about how the hardware shaped the Flight Simulators of the time. It's been lots of fun - the experience of these computers (through emulators) is so alien, novel and quaint. Scenery Disk 12 was one of the last, if not the last scenery disk to be released, around 1988, after MSFS 3 had been released. It includes renderings of New York City, Boston, Halifax, Montreal, Philadelphia, and Hartford. It wasn't released for many of the platforms that had received scenery disks in the past, but I do know it was released for DOS and the Amiga. This makes the DOS platform (IBM and compatibles) one of the few (if not the only) platforms to be able to run every scenery disk released. Clarifying if you have memories of flying Scenery Disk 12 back in the day? Or other scenery disks? If SD 12, do you recall flying this in MSFS 2 specifically? Long time ago, I know! No worries about email replies, I was simply worried something unfortunate might've happened to you. Now that I know you have a repository of vintage flight simulation software lookout for another email!