woodside@ttidca.TTI.COM (George Woodside) (01/25/90)
Many current machines ignore the high density notch in 3.5" disks, and
do some sort of software density detect. Similar logic is used (I assume)
for 5.25" drives.
I have a problem sensing the correct density on non-DOS disks. The drive
continues to treat the disk as the same density as the last DOS format
disk read. This is true on both a clone, and a COMPAQ (386).
Anyone have any helpful hints? I've tried reading a sector with int 25
and int 13, but neither seem to do anything to adjust the density.
It reads the data correctly, but still thinks the number of
sectors per track are the same as the last DOS disk. I'm guessing that
there is some device driver structure out there that I need to adjust.
--
* George R. Woodside - Citicorp/TTI - Santa Monica, CA *
* Path: woodside@ttidca *
* or: ..!{philabs|csun|psivax}!ttidca!woodside *