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From: Julian Elischer <julian@ref.tfs.com>
Message-Id: <199510202352.QAA00968@ref.tfs.com>
Subject: Re: Sony CDU-76S CDROM -- need SCSI command set (?)
To: cshenton@apollo.hq.nasa.gov (Chris Shenton)
Date: Fri, 20 Oct 1995 16:52:57 -0700 (PDT)
Cc: hardware@freebsd.org
In-Reply-To: <199510202304.XAA04706@wirehead.hq.nasa.gov> from "Chris Shenton" at Oct 20, 95 11:04:11 pm
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SONY believe they know better..

so they didn't impliment the standard SCSI-2 audio commands
but used their own.. 

(I mean no-one uses these devices without BIOS support right?)



I THINK there may be a version of one of the cd player packeges
(I forget which) that uses the scsi(4) interface to do 
direct scsi commands to the device. it possibly knows about the sony.
(but I can't guarantee it)

> 
> I recently picked up a Sony 4X CDROM drive, model CDU-76S. Windoze-NT
> sees it fine, both for filesystems and playing CDs.
> 
> But I usually run my 486 as a FreeBSD box, and although I can mount
> filesystems from the CDROM, none of the CD-player tools I have can
> seem to do anything more interesting then EJECT the CD. Attempts to
> play it cause either "invalid command" responses or the track-display
> to cycle through the tracks until it comes to the last -- no
> audio. Interestingly, they do seem to be able to figure out how many
> tracks are on the device. 
> 
> Can any one give me pointers to the SCSI command set for this drive,
> or enlighten me as to what I'm doing wrong? Thanks.
>