Hugo Holden
Veteran Member
I have been using a workhorse 5.25 floppy disk over the last few months in my YD-580 drives & VSG with the Northstar double density controller & Sol-20.
A couple of months ago an odd file format turned up in the directory "9999 99" I had no idea what this was or how it came about. Also I could not erase it with any combinations like ERA 9999.99 etc. I have attached a photo.
Out of the blue today a lot of other listings appeared, this time IIII II, as can be seen in the photo. Once again these don't appear to do anything, are not possible to erase either, and all the other files/programs on the disk are working normally with no errors at all, so I think the drives and this disk are in good condition.
Has anyone seen this before or knows what it means or how it could come about ?
Recently I have been writing some programs for the first time to take data from specific memory areas to the disk, but the initial 9999 99 event turned up long before this.
A couple of months ago an odd file format turned up in the directory "9999 99" I had no idea what this was or how it came about. Also I could not erase it with any combinations like ERA 9999.99 etc. I have attached a photo.
Out of the blue today a lot of other listings appeared, this time IIII II, as can be seen in the photo. Once again these don't appear to do anything, are not possible to erase either, and all the other files/programs on the disk are working normally with no errors at all, so I think the drives and this disk are in good condition.
Has anyone seen this before or knows what it means or how it could come about ?
Recently I have been writing some programs for the first time to take data from specific memory areas to the disk, but the initial 9999 99 event turned up long before this.