Warning. This is experimental; I haven’t found a clean disk to read yet. The fragmented disk images which I have found (from vintagecomputer.ca) get about 57% good sectors. It could just be that the disks are bad, but there could also be something wrong with my decode logic. If you have any Victor disks and want to give this a try for real, please get in touch.

The Victor 9000 / Sirius One was a rather strange old 8086-based machine which used a disk format very reminiscent of the Commodore format; not a coincidence, as Chuck Peddle designed them both. They’re 80-track, 512-byte sector GCR disks, with a variable-speed drive and a varying number of sectors per track — from 19 to 12. Reports are that they’re double-sided but I’ve never seen a double-sided disk image.

FluxEngine reads them (subject to the warning above).

Reading discs

Just do:


You should end up with an victor9k.img which is 774656 bytes long. if you want the double-sided variety, use -s :s=0-1.

Big warning! The image may not work in an emulator. Victor disk images are complicated due to the way the tracks are different sizes and the odd sector size. FluxEngine chooses to store them in a simple 512 x 19 x 1 x 80 layout, with holes where missing sectors should be. This was easiest. If anyone can suggest a better way, please get in touch.

Useful references

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