On 04/30/2013 01:42 AM, Rolf Grunsky wrote:

I still have my Z-80A system with two Tandon half-height 8" single sided drives. I haven't attempted to power it up in 25 years. I also have my original CP/M 80 disc and my original TurboPascal version 1.0 for Z-80 on an eight inch disc with the manual. I doubt any of the discs are readable.
Recently, I tried reading my 20+ years old 5.25 inch 360kb floppies and almost all of them were perfectly readable, with no bad sectors and no need for retries. Even more surprising is the fact that they were labelled as SS/SD (single side/single density), but formatted at 360kb, which is a DS/DD (double side/double density) format.

Nikolay
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