home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky comp.sys.sun.hardware:5645 rec.audio.pro:2334
- Path: sparky!uunet!haven.umd.edu!darwin.sura.net!zaphod.mps.ohio-state.edu!saimiri.primate.wisc.edu!ames!olivea!sgigate!sgi!fido!zola!zuni!anchor!olson
- From: olson@anchor.esd.sgi.com (Dave Olson)
- Newsgroups: comp.sys.sun.hardware,rec.audio.pro
- Subject: Re: Audio-capable, computer-interfaced DAT drives? [Summary]
- Message-ID: <sdpisuc@zuni.esd.sgi.com>
- Date: 16 Nov 92 02:23:52 GMT
- References: <1992Nov6.135302.29630@onionsnatcorp.ox.ac.uk> <mabbot.13.721466946@stel.csir.co.za>
- Sender: news@zuni.esd.sgi.com (Net News)
- Organization: Silicon Graphics, Inc. Mountain View, CA
- Lines: 40
-
- In <mabbot.13.721466946@stel.csir.co.za> mabbot@stel.csir.co.za (Mike Abbot) writes:
-
- | Perhaps a glimmer of hope.
- |
- | >1. In general, DAT back-up devices cannot handle audio. Technically,
- | > the reason is that computer data on a DAT has extra levels of
- | > error-correction relative to audio data, and most drives refuse
- | > to read tapes without data-type error correction, and will only
- | > write tapes with enough error-correction for data. Legally, the
- | > reason is that the suppliers of DAT back-up devices do not want to
- | > tangle with record companies' lawyers.
- |
- | I was recently browsing through the programming manual of a WANGDAT 3200 and
- | I noticed that it *is* possible to switch off the data-type error
- | correction (Wang call it C3 ECC as opposed to the audio-type ECC, C1 and
- | C2.) via a mode setup command to the drive.
- |
- | I have not tried it, and I don't have much hope for its success, but anyway
- | it might be of interest to you. Perhaps you can contact the WANGDAT
- | technical guys and see what they have to say.
-
- Unless this does a lot more than just turn off C3 ECC, it isn't going to
- do you much good, speaking from a lot of experience with making the
- audio over SCSI work with the Ardat drive.
-
- You could always buy one of our drives and install it on the Sun. After
- that, it is just a small ;) amount of effort in writing a driver.
-
- Ardat keeps saying that they plan to release the drive that we buy to
- the general public someday (its really just different firmware, the
- hardware is stock). So perhaps you should pester your Ardat sales
- folks to see if they will sell you a drive with the SGI firmware (and
- perhaps more importantly, the documentation on the audio features).
-
- Of course, with Archive (Ardat's parent) being bought by Conner, things
- are probably a bit confused down there at the moment...
- --
- 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
-