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burns CDRs but not CDRWs

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Barry Chapman

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Nov 30, 2003, 4:25:28 AM11/30/03
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I have a Toshiba DVD-ROM SD-R1002 that wont burn CDRWs, it used to! It
burns CDRs perfectly but when I burn a CDRW my burning software, Easy CD
Creator 5 Platinum, seems to be doing the business and actually reports a
successful burn but the CDRW does not contain anything. Looking at the CDRW
there is not a mark on it, the CDRs have a visible area - you can see where
it has burnt the media but not a mark on the CDRWs. I am using Windows
2000, the drive can read CD & DVDs fine, 'home made' or factory items.
HELP!!!!

Barry


Barry Chapman

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Nov 30, 2003, 4:58:33 AM11/30/03
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Further to my last I have tried (at 1X, 2X & 4X speed) HP CD-RW C4438A Multi
read compatible, 1X 2X 4X write speed 650 MB Media and Verbatim DataLifePlus
2X - 4X write speed 700MB Media.

Barry

"Barry Chapman" <br...@blueyonder.co.uk> wrote in message
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Barry Chapman

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Nov 30, 2003, 4:58:51 AM11/30/03
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Further to my last I have tried (at 1X, 2X & 4X speed) HP CD-RW C4438A Multi
read compatible, 1X 2X 4X write speed 650 MB Media and Verbatim DataLifePlus
2X - 4X write speed 700MB Media.

Barry
"Barry Chapman" <br...@blueyonder.co.uk> wrote in message
news:6Oiyb.4285$cF1....@news-binary.blueyonder.co.uk...

Barry Chapman

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Nov 30, 2003, 4:59:06 AM11/30/03
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Further to my last I have tried (at 1X, 2X & 4X speed) HP CD-RW C4438A Multi
read compatible, 1X 2X 4X write speed 650 MB Media and Verbatim DataLifePlus
2X - 4X write speed 700MB Media.

Barry
"Barry Chapman" <br...@blueyonder.co.uk> wrote in message
news:6Oiyb.4285$cF1....@news-binary.blueyonder.co.uk...

Barry Chapman

unread,
Nov 30, 2003, 4:59:14 AM11/30/03
to
Further to my last I have tried (at 1X, 2X & 4X speed) HP CD-RW C4438A Multi
read compatible, 1X 2X 4X write speed 650 MB Media and Verbatim DataLifePlus
2X - 4X write speed 700MB Media.

Barry
"Barry Chapman" <br...@blueyonder.co.uk> wrote in message
news:6Oiyb.4285$cF1....@news-binary.blueyonder.co.uk...

Barry Chapman

unread,
Nov 30, 2003, 4:59:23 AM11/30/03
to
Further to my last I have tried (at 1X, 2X & 4X speed) HP CD-RW C4438A Multi
read compatible, 1X 2X 4X write speed 650 MB Media and Verbatim DataLifePlus
2X - 4X write speed 700MB Media.

Barry
"Barry Chapman" <br...@blueyonder.co.uk> wrote in message
news:6Oiyb.4285$cF1....@news-binary.blueyonder.co.uk...

Barry Chapman

unread,
Nov 30, 2003, 4:59:32 AM11/30/03
to
Further to my last I have tried (at 1X, 2X & 4X speed) HP CD-RW C4438A Multi
read compatible, 1X 2X 4X write speed 650 MB Media and Verbatim DataLifePlus
2X - 4X write speed 700MB Media.

Barry
"Barry Chapman" <br...@blueyonder.co.uk> wrote in message
news:6Oiyb.4285$cF1....@news-binary.blueyonder.co.uk...

Leon.

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Nov 30, 2003, 7:34:13 PM11/30/03
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"Barry Chapman" <br...@blueyonder.co.uk> wrote in message
news:6Oiyb.4285$cF1....@news-binary.blueyonder.co.uk...

You dont get to see marks on the CDRW.

All you can do is clean it and hope dirt is the problem - otherwise it would
appear that the CDRW laser in the drive has failed. (it has two lasers - one
for CDR and one for CD-RW )

Leon.

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Dec 13, 2003, 2:51:25 AM12/13/03
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> >
>
> Well, you DO get to see 'marks' if you use a new CDRW disc.

well, to decide if the burnt area shows any burn or not, I picked up a
verbatim 4-12X CR-RW and held it at various angles, including an angle
where the grains produced a diffraction pattern. I couldnt see any
difference between the burnt area and the unburnt ring on the inside and
outside.

Maybe its possible to see a mark on a fresh CD-RW burnt with only some
data...
But then after fully burning or erasing it there will be no obvious
boundaries to be seen ?

> I doubt that the drive has separate lasers for CDR and CDRW, but even
> if it did, if the CDRW laser had failed, the drive should report a
> power calibration error before burning started.

Which it might attempt to do and then totally fail to burn a valid CDRW.

But its true that its highly likely that the laser and calibration is
working properly.

Its more likely the burner has a firmware problem and either a firmware
update or changing the burning mode will fix it.


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