Date: Sat, 30 Dec 1995 01:12:46 +0800 (WST) From: Julian Elischer <julian@jhome.DIALix.COM> To: joerg_wunsch@uriah.heep.sax.de Cc: current@freefall.freebsd.org Subject: Re: SCSI II CDROM fails to play Message-ID: <199512291712.BAA00868@jhome.DIALix.COM> In-Reply-To: <199512291542.QAA28686@uriah.heep.sax.de> from "J Wunsch" at Dec 29, 95 04:42:37 pm
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> > > > SONY has a very weird understanding of the SCSI 2 standard in that > their MODE SELECT command doesn't allow the medium type field that it > was just spitting out with a MODE SENSE. The fix would be to always > MODE SELECT with a medium type field of 0 (as pointed out by Stu [?]). while it is common usage to allow fields to be moved directly from MODE_SENSE to MODE_SELECT, it is in fact the case that this is not always required by the standard.. In fact the mode-page descriptor in the mode select/sense command itself has a field that should be set differently.. certainly it does not make much sense to tell a read-only device what kind of media it has in it.. so Maybe SONY were being a little "TOO CLEVER", but they are not wrong.. It's actually a GREAT IMPROVEMENT as some of the early SONY drives didn't seem to follow SCSI-2 at all with regards to Sound.. julian
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