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    SubjectRe: Linux VCR driver?
    Date

    In linux.dev.kernel, article <32A36F67.642@mail.kdcol.com>,
    Brent Glines <bglines@mail.kdcol.com> writes:
    >
    > "There are controllers available for many PC's that allow a VCR to be
    > used as a backup device. This is an inexpensive way to get a lot of
    > backup capability on a PC. However, in order to utilize such a system,
    > a device driver will have to be written..."
    >
    > I do not have a tape backup drive handy. I have several VCRs. Has
    > anyone ever heard/done anything along these lines?
    >
    Don't.

    There may be such beasts, but I wouldn't trust my data to them.
    Better get a "real" computer tape drive.

    Problems with these video beasts:
    - No read-after-write, therefore no decent error control.
    - The additional conversion to an analog video signal means that the speed
    is nothing to speak of.
    - No filemarks, i.e. one backup per tape.
    - How do you push the rewind/play/record buttons with the computer?
    - Timing of the signal (usually, parallel-port) is likely to be rather
    critical -> writing a Linux driver is difficult at best.

    --
    Sweeny's Law: The length of a progress report is inversly proportional to the
    ammount of progress.
    --
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