First post, by Planet-Dune
I am running into floppy drive issues... I have 3 systems with the following configurations:
1.44MB 3.5" drive, 1.2MB 5.25" drive
720 3.5" drive, 360KB 5.25" drive
2x 360KB 5.25" drives
Now I acquired a box of a few hundred floppy disks. I believe they are all DD 360b floppies. Beyond the expected some work, some don't, some half I am running into another issue. It seems if I use the 1.2MB drive in SysA to put data on the floppies I get very bad results once reading that data in the 360kb drives. Errors left and right, somefiles copy fine, then 5 don't, then a few do, then some don't etc.... I thought having the 1.44mb/1.2mb combo would allow me to get data on my 360 system the fastest (the SysC) as I could just put the data from my pc downstairs on a 1.44 diskette and then put that in SysA and copy it to the 360kb floppies... instead of having to use a 1.44mb diskette to copy the data to a 720kb diskette to copy the data to a 360kb floppy.
A few questions (to make this question more clear):
- Can I freely use a 1.2MB floppy to write data to 360KB floppies to be used on a 360KB drive?
- Can I format a 360KB floppy in a 1.2MB drive? I tried and it weirdly enough said it was "formatting 1.2mb" and then said there were 200kb of bad sectors and 900kb usable (on a 360kb floppy as far as I can tell) but the floppy really didn't work well anymore at that point, especially in the 360kb drive.
- Is there a good DOS based utility that works with 360kb floppys that checks them and marks all bad sectors to not use them etc? So I can format all my floppies..
I think I wasted about 15 or so 360kb floppies testing out different scenarios and figuring out what is happening but the results are so erratic (sometimes the floppy is just dead, other times it works half etc)... I figured Id ask you guys 😀
EDIT: added a screenshot of the format I did, as you can see it said something about a "different file format" and that I wouldn't be able to "unformat" but then proceeded to format it labeling it a 1.2MB floppy.