« Reply #6 on: May 15, 2014, 09:32:54 PM »
IIRC, ZIP 100 disks have a software method of setting write protect on them. So assuming for some reason that your Amiga don't think it is dealing with a read-only CD ROM, go back to HD Toolbox, prep it as a single FFS partition and then see if you can do a long format on it.
Edit: Also, have the ZIP disk in the drive when you switch on the A1200.
« Last Edit: May 15, 2014, 09:36:02 PM by Darrin »

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A2000, A3000, 2 x A1200T, A1200, A4000Tower & Mediator, CD32, VIC-20, C64, C128, C128D, PET 8032, Minimig & ARM, C-One, FPGA Arcade... and AmigaOne X1000.