Export a file to DV tape via Firewire?

Can I export a DV file, or for that matter any file, onto a DV tape via the 1394 Firewire port? This may sound strangely retro, but I'd like to try using DV tape as a backup for some irreplaceable files. I envision getting a MiniDV deck or camcorder to use as a tape drive backup. The background issue is the possibly short lifespan of home-burned DVDs and CDs and even hard drives.
G4 1GHz FW800   Mac OS X (10.4.8)   new WD 250 Gb drive

You want to use your camera to store files that are currently stored on your Mac, right? Any file, not just a DV file. Your goal is NOT to export a DV file to the camera as video. Rather, you want to export it is a data file you can someday re-import to your Mac's hard disk. Right?
I recall a conversation here long ago about third-party software that exported files to a camera as you describe. Sorry, I don't recall its name. It was a guy who had written it, if I recall, not a commercial software company.
I'd be very, very careful relying on such a method to store files. Perhaps it can be done reliably, I don't know, but I'd be very careful.
I'm more familiar with software that stores Mac backups on a variety of media, including DAT tapes using a DAT tape drive. Retrospect, the commercial backup application, is one such application. Backups stored on tape can be very reliable, but it relies on very reliable, carefully tested software.
Retrospect stores the backup files in a Retrospect-readable format. The tape catalog Retrospect stores on our hard disk tells Retrospect where to retrieve the files from the tape. As we retrieve those files, Retrospect converts them back into Mac files.
Keep in mind that data files must stored perfectly on the tape. If just one byte off, the file may be garbage. With video, a tiny error probably won't be seen in the image played at 30 frames per second. We don't notice one blue pixel that plays red. But in a data file, the error could be catastrophic.
A better solution may be to buy a big, cheap hard drive. Or two, for redundancy.
Karl

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