11-18-2015, 07:33 PM
I'm using a Toshiba ND-0801GR, which is a 1.2MB 96TPI drive. However, I've got some disks I want to dump which are 48TPI. I've figured out the jumpering on the drive to make it so that it properly switches between 300RPM and 360RPM according to the "Density" option in SCP software.
The problem I'm having, though, is that I can't figure out the proper settings for SCP to get usable results on these disks. If I just dump using the "IBM 360K" setting, I end up with every other track is invalid or blank (according to Samdisk scan), which leads me to believe that probably the dump is dumping only half the tracks as well as the gaps between them.
Is there some way to force double stepping?
The other thing I'm confused about is the proper way to dump 1.2MB disks. I know it's been discussed some elsewhere, but I'm still confused. So 1.2MB disks are 80 tracks, but the 360K option in SCP only indicates it copies tracks 0-39, which is only 40 tracks. Am I supposed to use the 720K option so that I get an 80 track dump?
The problem I'm having, though, is that I can't figure out the proper settings for SCP to get usable results on these disks. If I just dump using the "IBM 360K" setting, I end up with every other track is invalid or blank (according to Samdisk scan), which leads me to believe that probably the dump is dumping only half the tracks as well as the gaps between them.
Is there some way to force double stepping?
The other thing I'm confused about is the proper way to dump 1.2MB disks. I know it's been discussed some elsewhere, but I'm still confused. So 1.2MB disks are 80 tracks, but the 360K option in SCP only indicates it copies tracks 0-39, which is only 40 tracks. Am I supposed to use the 720K option so that I get an 80 track dump?