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My sony laptop will not recongnize my DVD-r disk.

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The disc may be damaged.
If other DVD-r work then that is the problem
If not then your drive could be damaged
Contact your manufacturer

Posted on Jun 09, 2008

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If its windows XP try
Click the Start button, click Run, and then type regedit in the Open box.
Click OK.
The Registry Editor window appears.
Click the plus (+) sign next to each of the following keys:
HKEY_LOCAL_MACHINE
SYSTEM
CurrentControlSet
Control
Class
NOTE: When you click on the plus sign more folders will expand out below it follow the expanded set each time to find the next folder listed.
Click {4D36E965-E325-11CE-BFC1-08002BE10318}.
On the right hand side of the window, click UpperFilters.
Click Edit on the menu bar.
Click Delete.
Click OK.
On the right hand side of the window, click LowerFilters.
Click Edit on the menu bar.
Click Delete.
Click OK.
Click Registry.
Click Exit.
Restart the computer normally

Posted on Jun 09, 2008

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Lightscribe dvd writer840


Hi,

Before reading the rest of this article, make sure the DVD is
clean and undamaged. You can also try inserting a special
DVD cleaner disk in the machine, to make sure the heads
are not dirty. These cleaner disks are available from your
neighborhood movie outlet for 10 bucks or so.

There are several DVD and CD formats and not all drives can
read all of them, so it is also not unusual to be unable to read
disks created by another machine .....

However:

A quick check of your DVD drive's specifications at:
------------------------------------------------------------------------------------------------------------
http://www.cdrinfo.com/Sections/Reviews/Specific.aspx?ArticleId=15764
-------------------------------------------------------------------------------------------------------------

indicates that your drive should be able to read most popular
formats, so disk compatibility is probably not the problem.
==============================================

Your problem can be either hardware or software related:

1) Make sure that the correct Windows drivers are installed.
Uninstall (using device manager) and re-install them if
necessary.

Many rogue programs and commercial computer games
deliberately damage or corrupt these device drivers, in
order to discourage disk copying.

Games that use "Star-Force" copy protection and SONY
audio disks are notoriously evil and aggressive, in causing
deliberate damage to Windows (and in some cases to the
physical hardware itself) in order to promote their perverse
corporate agendas.

Sony is now facing criminal charges in many countries
around the world for releasing the infamous SONY RootKit,
causing damage to millions of consumers.

(Google: "SONY rootkit" for more info)

Also look for articles on the subject by Mark Rusinovich,
originally from Sysinternals, now at Microsoft.


2) Run a good malware scanner on your computer to make
sure that you have no rootkits installed.

Try utilities like: F-Secure, Black Light, Rootkit Revealer,
RegDelNull.exe, from sysintenals, winternals etc.

A root-kit is a special type of Trojan Horse program,
designed to be stealthy and invisible to anti-virus
utilities. These root-kits exploit weaknesses in Windows
design to make themselves totally invisible and difficult
to remove.

Root-kits specifically designed for copy/piracy protection,
replace or alter windows device drivers, intercept the data
read from the CD/ DVD drive, slow down disk burning to
a crawl, and often attack CD burning, copying or cloning
software, including virtual device drivers like "Alcohol".

3) Once you are 100% sure that software is not at fault,
which is the most likely scenario, replace the DVD
drive, since they are cheap and generally not repairable.


Hope this helps, Martin

P.S. I have written another article on this subject on FixYa,
under "slow DVD burning"



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try this
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