If I understand correctly, the superdrive in my Mac Classic is able to read and write dos formatted disks. Is there image software available to write a dos .dsk? It's just a raw image file, I'd use rawrite on dos or dd on unix.

The goal is to write a bootable floppy for my new old Tandy 1000TX. Unfortunately the only 3.5" dsdd MFM drives I have are these.

Looking at the Wiki, it appears that DiskCopy 4.2 images are just raw images with a header. Is my best bet to hand craft a header from the (excellent) documentation?