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Date:      Thu, 10 May 2001 13:32:47 +0200
From:      Jens Schweikhardt <Jens.Schweikhardt@marconi.com>
To:        freebsd-scsi@freebsd.org
Cc:        schweikh@freebsd.org
Subject:   read trouble with Yamaha CRW6416
Message-ID:  <20010510133247.D13838@bk4957.de.marconicomms.com>

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hello, world\n

I've got the following cd burner in my FreeBSD 4.2 box:
# camcontrol inquiry cd0
pass1: <YAMAHA CRW6416S 1.0b> Removable CD-ROM SCSI-2 device
pass1: 10.000MB/s transfers (10.000MHz, offset 15)

This 6x4x16 had problems from day 1 reading (non-burnt) CDs, e.g. the           Walnut Creek CDs:

  $ cd packages/All; for i in *.tgz; do gzip -tv $i; done
  gzip: 4va-1.21.tgz: invalid compressed data--format violated
  9e-1.0.tgz:              OK
  9menu-1.5.tgz:           OK
  gzip: 9term-1.6.3.tgz: invalid compressed data--crc error
  gzip: 9wm-1.1.tgz: invalid compressed data--crc error
  gzip: Cgraph-2.04.tgz: invalid compressed data--format violated
  ...
  (only about 1/3 of packages are ok)

Note that there are no I/O errors, it's just garbage that's
in the files.

A 10X Pioneer CD Reader in the same system reads all those CDs
without a hitch, so it's definitely the Yamaha that's icky. The
CDs look perfect, no scratches or anything, so read errors due
to that should not be the real problem. The Yamaha reads its
self-burnt CDs just fine. So my question is: what can I do/test/
configure/update/tune to make my Yamaha read other CDs correctly?
Any insights deeply appreciated. Thanks!


Regards,

	Jens
-- 
Jens Schweikhardt  http://www.schweikhardt.net/
SIGSIG -- signature too long (core dumped)

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