On 12/17/2017 09:52 PM, Jon Elson wrote:
There were several DIFFERENT formats used with these
standard tape
cartridges.? I have some old CDC Patriot tape drives that did a
serpentine single track at a time format on a 3480-compatible tape. I
don't think any DEC drive supported the 18-tracks-wide IBM 3480 format.?
I think DEC's drives were also serpentine.? If they are really from an
IBM compatible system (really too late for 360, most likely 370 systems)
then I think only an IBM-compatible drive would read them.? Wikipedia
says the 3480 was introduced in 1984.
Well, this is part of the job. I got the potential client to send a
photo of the cartridge--and he managed to get a 3480 cartridge for
comparison.
It's clearly an IBM MT/ST cart:
https://imgur.com/a/K9vyg
Anyone around who can recover the data from these things?
--Chuck