I'd super appreciate a boost to my original post, if you're in the UK.

This is what the data looks like (edited for concision) - Weirdly this is from the Community disc SOUTH side. Being able to just enter the frame number (1 indexed) and show the right map is great.

Of course if you have the capability, I'd just as soon take a DD of the SCSI :)

I still miss Fido

Constraints are the mother of invention. Count your blessings you don't have to locate your file on magnetic tape and load it at 300 symbols per second.