Victor 9000 images

[david-schmidt]

Hi again, David -

I find myself with a stack of 5-1/4" Victor 9000 disks that I've read successfully (with a Catweasel card, in my case). The tool I'm using creates a rather literal disk image based on exactly the number of tracks in each zone. I've only just started looking at them, but it looks like it's a fairly standard MS-DOS layout. mtools is confused by them because they don't have a sane BIOS Parameter Block; I may try cooking one up and seeing if things can start looking normal. I'm just wondering - have you done any further experimentation with Victor 9000 disks/images?

[davidgiven]

I haven't touched the filesystem side of things, TBH. I have experimented a bit with FAT BPBs for another project and the disks are addressed internally by block number, rather than CHS, so chances are you need a triangular image with no padding between the tracks (unlike the images FluxEngine makes). What does the BPB look like?

[david-schmidt]

That's great news - CHS would be a problem for triangular images (also a great analogy). The BPB is garbage - even the older media byte is nonsense. I still have to lay down a decent guess at the BPB, but will get to that shortly.