03-14-2014, 06:25 AM
The PC FDC requirement is just for real disk access using the normal controller. You can still access SCP images with SAMdisk on any system. I don't have any direct SuperCard Pro support in yet, but it's on my list 
You can peek inside MFM/FM images using: SAMdisk scan yourimage.scp
The 3" drives aren't too special, but do need a slight slower step rate than normally used for 3.5" drives. Single steps generally work but seeks will miss some steps if it's too fast. They're 40-track flippy drives, so having a preset range of 42 tracks and 1 side would be great. It applies to the Spectrum +3 as well as the Amstrad CPC, so a +3/CPC or CPC/+3 label would be fine if space is tight.
You can peek inside MFM/FM images using: SAMdisk scan yourimage.scp
The 3" drives aren't too special, but do need a slight slower step rate than normally used for 3.5" drives. Single steps generally work but seeks will miss some steps if it's too fast. They're 40-track flippy drives, so having a preset range of 42 tracks and 1 side would be great. It applies to the Spectrum +3 as well as the Amstrad CPC, so a +3/CPC or CPC/+3 label would be fine if space is tight.