On Wed, Nov 04, 2015 at 05:35:51PM -0800, Chuck Guzis wrote: > I've got a set of mystery 5.25" DD floppies that appear to be a > backup of some sort. 10 x 512 byte sectors per track, 40 cylinders, > double-sided. Normal sector IDs (Side 0: 0/ Side 1: 1), 1-10. > > No, it's not FASTBACK nor does it appear to be Central Point's PC > Backup. The start of the first sector of the first floppy looks > like this: > > 000000 50 43 42 41 43 4B 55 50-2E 01 00 50 43 42 00 06 > 000010 04 00 69 00 00 00 00 00-00 00 00 00 00 00 00 00 > 000020 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 > 000030 00 00 00 00 00 00 00 00-00 00 00 00 01 01 01 01 > 000040 01 01 01 01 01 01 01 01-01 01 01 01 01 01 01 01 > 000050 01 01 01 01 01 01 01 01-01 01 01 01 01 01 01 01 > 000060 01 01 01 01 01 5A 5A 5A-5A 5A 5A 5A 5A 5A 5A 5A > 000070 5A 5A 5A 5A 5A 5A 5A 5A-5A 5A 5A 5A 5A 5A 5A 5A > 000080 5A 5A 5A 5A 5A 5A 5A 5A-5A 5A 5A 5A 5A 52 13 C5 > 000090 9A 01 00 1E 00 01 00 54-55 52 42 4F 43 5C 00 00 > > Note that it starts off with 'PCBACKUP'. This doesn't seem to match > anything in my library. Anyone got any ideas. > > Oh yeah, this would be circa 1989 or so.
That sounds like the pcbackup program from the PC Tools suite from Central Point. http://www.oldskool.org/guides/dosbackupshootout includes at the bottom a link to PC Tols 6: http://www.oldskool.org/guides/dosbackupshootout/Central%20Point%20PC%20Tools.rar Kind regards, Alex. -- "Opportunity is missed by most people because it is dressed in overalls and looks like work." -- Thomas A. Edison
