Odd PDP-11 tape related question

From: Kevin Handy <kth_at_srv.net>
Date: Tue Jan 13 11:13:10 2004

Zane H. Healy wrote:

>I've got a TPC image, that was originally from a MM: drive, and I've written it back out to a MU: drive (4mm in this case). I'm just trying to read the tape, I'm not trying to do anything fancy like boot from it. Is there any reason that I should have trouble doing this?
> Zane
What OS, and how are you trying to read it, what format is the tape in,
how did you create it, etc.?

Are you trying to read it as file structured, or raw?

Was it written with the same tape drive you are trying to read it from?
    Differences in the drives
        compression method
       abaility to handle >90m tapes

Yes (or No)
    Dirty heads.
    Block size > than the PDP11 software can handle
    Different format (DOS vs. ANSI vs. UNFORMATTED)
    Badly written tape (software failure)
Received on Tue Jan 13 2004 - 11:13:10 GMT

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