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> tape broke and got tangled up and likely ruined I'm far from a beard-and-suspenders type who got to use those systems when they were current, but my understa
by DaiPlusPlus 4y ago
> tape broke and got tangled up and likely ruined
I'm far from a beard-and-suspenders type who got to use those systems when they were current, but my understanding is that When a tape tangles it doesn't affect the magnetic data stored on the tape: only a sufficiently powerful magnet can do that - even if it got tangled-up inside the tape machine one would hope the machine was designed to not energize the erase or write heads unless the tape was known to be moving smoothly through the tape transport.
- drittich 4y agoYes, but if you DO lose a byte or two, it may render the whole thing unreadable, at least without getting into forensics.
- blincoln 4y agoWhen I worked in systems engineering, some of the folks a decade or two older had supported tape-based computing systems. Tape damage happened all the time. They would splice it back together, manually repair corrupt bits and bytes with something like a hex editor, etc. I don't know all of the details, but IIRC sometimes they'd use magnetic viewing film, which you can still buy. It might not be documented well online, but if that really is the last copy in existence, it would be worth tracking down some mainframe-era sysadmins to ask for tape recovery advice, IMO.