I’ve gone through and archived all of the floppy disks that I have. I’ve posted the DSS-1 disks as a series of .zip files. You will need to use OmniFlop to restore them to floppy disks. In addition to the DSS-1 disks, I have Prophet 3000, TX16W, and some Generalmusic stuff (S series, Equinox) images if anyone is interested.
Find the disk images at the Downloads page!