In article 4D2F4E13.5050205@yahoo.co.uk, Jules Richardson wrote:
What system were they from? That might be helpful to list readers (or yield someone with a working system that can read them "natively")
They were written on a PC, but people (including myself!) used larger than normal sectors (and mixed sector sizes) to get more data on a disk.
However, I've now established that my disks are vanilla but in a sorry state.
Ian