> > Far more than you wanted to go through: > Fred,
Not at all. As always lots of wisdom condensed into a short post. This one is going into my "Posts to Save" folder! > "2.8M" has an unformatted capacity of 4M > The disk that you linked a picture of says "406TPI"! > Therefore, it presumably has about three times as many tracks. (240?), > which, if it does a 1,000,000 bits per second, with track density the > same > as "2.8M", would give it an UNFORMATTED capacity of 12M, and a > formatted > (data) capacity of about 8.5M. > Perfectly predicted and exactly as the PR announcement and info I have found says it should be! >From Wikipedia: https://en.wikipedia.org/wiki/List_of_floppy_disk_formats#Physical_compositi on Density Tracks tpi bpi Coercivity Unformatted capacity per side Triple[14] 240 406.5 36,700 6,500 KB -Ali
