![]() You can create images with KryoFlux right now, but for preservation we'll need the stream files produced (by KryoFlux), which is basically the flux transitions recorded. You do not have to send any disks if you have a KryoFlux device. Most disks were professionally duplicated and used encoding that directly or indirectly could be detected and/or read by the target platform, but normally not written. Tags are a Lisa/Macintosh specific thing, however (Apple II disks just have 0 in their tag fields, unless weird copy protection that uses raw reading is used). Note that the on-disk GCR encoding for the Apple II isn't very different from Macintosh. There's a web page with a ton of information on Apple GCR (the physical format, as opposed to logical), but it's all in French. This preserves data and tags, but does not preserve stuff like order of tracks or invalid GCR data which some games use for copy protection. cification for some detailed information on the DiskCopy 4.2 image format which we currently use for "regular" disks.Ĭurrently we use DiskCopy 4.2 for regular 400K/800K disks. The IWM chip allows some level of raw access to the floppy disk, so you'll probably need to save raw GCR data for such copy-protected disks.Įven without copy protection, there's still something to preserve with 400K/800K images: these disks have "tags," which are mandatory for Lisa machines and sometimes used with Macs as well. North_American/Macintosh/Utilities/Disk_Copy/Disk_Copy_6.3.3.smi.binĪ self-mounting image (.smi) will mount when double-clicked upon (if the intermediate computer is running System 7.0.1 or higher).Mac floppy disk formats are interesting. North_American/Macintosh/Utilities/Disk_Copy/Disk_Copy_4.2.sea.bin ![]() ![]() You will also need an appropriate version of a utility called StuffIt Expander to be used for the decoding of MacBinary (.bin) files.ĭisk Copy 4.2 (the Make A Copy button) and 6.3.3 (the Make a Floppy command under the Utilities menu) are used to produce properly sector-copied floppy disks from disk images. 1991-1997 Macintosh computer (with a built-in floppy drive for both 800K and 1.44 MB) as an intermediate machine, preferably with an Ethernet port. In order to create 800K floppies from downloaded disk images, you would really need access to another approx. ![]()
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