On 2/11/21 10:00 AM, David Schmidt via cctech wrote: > That's right, for disks detected as RX01 (which are of course fully FM, 128 bytes per sector). Sector data that is actually 0xDEADBEEF will > show up in the .dmk as 0xDDEEAADDBBEEEEFF. I've wondered why .dmk did that.