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Is there a way i can create a CHD or HD file image for use with the RM NIMBUS emulation? I cant find one anywhere to download, was wondering if I could create a blank hard drive file?

I know a partial answer:

chdman -createblankhd output.chd cylinders heads sectors [sectorsize [hunksize]]

a lot more ways to use chdman can be seen by:

chdman /? (from the command line)

Not sure the SCSI harddisk driver is working.
Anyway, I can not test because I need some Nimbus harddisk tools from the floppy disk (driver regression) to prepare the harddisk image.
A blank harddisk is not useful in this case.

Still waiting for Phills feedback.