Sony Vaio VGN-NW20SF DVD-RAM Drive Not Reading

This laptop contains a Matshita DVD-RAM UJ890AS which will not read any format of disc.

The problem started completely out of the blue as the drive was working perfectly fine a couple of days prior to the problem starting. Whether a windows update or iTunes update etc

The drive is showing in Disk Management and shows as working properly in Device Manager.

Event viewer shows the following error The driver detected a controller error on \Device\CdRom0.

I have so far;

• Checked for available driver updates - none noted
• Uninstalled the driver, rebooted the machine and let Windows re-install automatically - still no resolution to the problem.
• Tweaking the registry to remove the upper filters associated with iTunes - since resorted back to standard as this did not resolve the issue.
• Also removed iTunes and reinstalled

Machine is running Windows 7 Home Premium (SP1) 64 Bit.

Does anyone have any ideas?

Thanks

Source: http://forums.techguy.org/hardware/1034053-sony-vaio-vgn-nw20sf-dvd.html

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