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DVD Drive won't recognise DVD's but works with CD's

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I know this is dumb, but I recently installed a downloaded trial version of Apollo DVD Copy 4.8.35.
Immediately after installing the software my DVD drive does not recognise blank DVD's but it will read / write to blank CD's and will read already burnt DVD's from the same stock of DVD's I have been using.
It is NOT a media issue. I have burnt a number of DVD's already from the same spindle of 50 blanks I brought a while ago.
I have tried a system restore to a point before installing the Apollo software - no luck.
Have run the Microsoft ATS CD/DVD repair but no luck with this either.
The machine is a Toshiba Satellite L500 laptop, approx 6 months old.
I stupidly thought this was a one off issue and tried the software on a HP Probook 4520S notebook and got the same problem, except the HP wont even read any DVD's any more, but will still read / write CD's.
I have considered flashing the Toshiba DVD drive but can't find any firmware that works.
The Toshiba Drive is TS-L633C, the HP drive is TS-L633N. Have looked on firmwarehq.com and found a Firmware link for the Toshiba but when run it says no suitable drive found.
DVD stock is Transonic DVD+R but this is not the problem as I have been using these discs with both machines.
Have run the Nero DVD Info tool. Report for the HP Probook as follows:

Nero InfoTool

Drive Information
Drive : hp CDDVDW TS-L633N
Type : DVD±R/RW DL Recorder
Firmware Version : 0300
Buffer Size : 2 MB
Date : ?
Serial Number : R3186GTZ347611
Vendor Specific : HM
Drive Letter : G:\
Location : 0:1
Mechanism : Tray
Read Speed : 24 , 20 , 16 , 10 X
Write Speed : 24 X

Read CD Text : Yes
Return C2 Pointers : Yes
Read CD-R : Yes
Read CD-RW : Yes
Read DVD-ROM : Yes
Read DVD-RAM : Yes
Read DVD-R : Yes
Read DVD-RW : Yes
Read DVD-R DL : Yes
Read DVD+R : Yes
Read DVD+RW : Yes
Read DVD+R DL : Yes
Read BD-ROM : No
Read BD-R : No
Read BD-RE : No
Read HD DVD-ROM : No
Read HD DVD-R : No
Read HD DVD-R DL : No
Read HD DVD-RAM : No
Read HD DVD-RW : No
Read HD DVD-RW DL : No
Read HD-BURN : No
Read Digital Audio : Yes
Read CD+G : Yes
Read VideoCD : Yes

Write CD-R : Yes
Write CD-RW : Yes
Write DVD-R : Yes
Write DVD-RW : Yes
Write DVD-R DL : Yes
Write DVD+R : Yes
Write DVD+RW : Yes
Write DVD+R DL : Yes
Write DVD-RAM : No
Write DVD-RAM : Yes
Write BD-R : No
Write BD-RE : No
Write HD DVD-R : No
Write HD DVD-R DL : No
Write HD DVD-RAM : No
Write HD DVD-RW : No
Write HD DVD-RW DL : No
Write HD-BURN-R : No
Write HD-BURN-RW : No
Buffer Underrun Protection : Yes
Mount Rainier : No
SolidBurn : No
Labelflash : No
LightScribe : Yes
Modes : Packet, TAO, DAO, SAO, RAW SAO, RAW DAO, RAW SAO 16, RAW SAO 96, RAW DAO 16, RAW DAO 96

Region Protection Control : RPC II
Region : 1
Changes User : 4
Changes Vendor : 4

CSS : Yes
CPRM : Yes

Disc Information (G:\)
Type : :No disc inserted

The drive is showing in the Device Manager which says the drive is working properly. Have tried to update the drivers from here but it says my drivers are up to date after an online search.

I am completely stuck on this so any help would be much appreciated.

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Update on this problem:
A tech from HP has swapped the DVD drive on the ProBook and the replacment drive works fine with no change / update to the drivers etc.

Could the Apollo software have caused a phyical failure with the DVD laser?
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I wouldn`t know for sure, but I suppose anything is possible whilst also unlikely.
After reading your post I had a look on google and found this http://techrepublic....content;leftCol
Note that the question that was being asked concerned malware/virus attack.
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