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- From: olson@anchor.esd.sgi.com (Dave Olson)
- Newsgroups: comp.sys.sgi
- Subject: Re: Using the digital Audio out to backup on a DAT .. ?
- Message-ID: <pae3e4g@zuni.esd.sgi.com>
- Date: 1 Sep 92 17:37:32 GMT
- References: <?.715298753@tazdevil> <p9gh5hc@zuni.esd.sgi.com> <la61i0INNan7@exodus.Eng.Sun.COM>
- Sender: news@zuni.esd.sgi.com (Net News)
- Organization: Silicon Graphics, Inc. Mountain View, CA
- Lines: 40
-
- In <la61i0INNan7@exodus.Eng.Sun.COM> stoltz@denwa.Eng.Sun.COM (Ben Stoltz) writes:
- | olson@anchor.esd.sgi.com (Dave Olson) writes:
- | >In <?.715298753@tazdevil> henrik@mpci.llnl.gov (Henrik Klagges) writes:
- |
- | >| Can the digital audio output jacks on an Indigo be used to record
- | >| Backup-files onto DAT tapes ? This would be a great kludge in connection
- |
- | >YUCK. Fortunately this gawdawful suggestion won't work, at least, not
- | >without an incredible amount of work, and maybe not then.
- |
- | Well, if the bit stream is unreliable, a little HDLC encoding in software
- | should help. But, if the on-tape format is anything like the on-disc
- | format of CD-DA, then the tape should be pretty reliable.
-
- It isn't. That is why data DAT has a 3rd level of ECC (audio has
- only 2).
-
- | As long as you don't underflow while writing to the tape, everything
- | should work pretty well. You could get one nice big tar file on one
- | of those tapes. Yeah it's gross to pump your files through AES/EBU, but
- | it's a tempting hack.
-
- Of course, you wouldn't be able to read that data on any data DAT
- drive (except, conceivably, on an SGI system by taking the digital
- 'audio' and stashing it in a file (or via a pipe) to feed to your
- archive program later). I'd really not want to count on this working.
-
- | >| with a portable DAT player, because one could carry one's software library
- | >| around in a DAT and have the player handy to ensure everyone can read it.
- | >| Cheers, Henrik
- |
- | >Buy a data DAT drive. They are reasonably portable.
- |
- | I wouldn't want to listen to one though :^)
-
- Gee, ours sounds just fine (with audio tapes)...
- --
- Let no one tell me that silence gives consent, | Dave Olson
- because whoever is silent dissents. | Silicon Graphics, Inc.
- Maria Isabel Barreno | olson@sgi.com
-