HL-DT-ST DVDRAM GSA-T40N ATA Device -E:\ Application Not found

Try reloading the drivers for it.

Got to the Acer Web site and look under drivers and downloads. Select your model # and download the corresponding drive. Your prblem should be fix

There is a Microsoft KB article on this subject. Here is the link :
http://support.microsoft.com/kb/314060
Just follow the instructions and it may solve your problem

Hi,

1) Close all open programs

2) Click on Start, Run, and type REGEDIT and press Enter

3) Click on the plus signs (+) next to the following folders

• HKEY_LOCAL_MACHINE
• SYSTEM
• CurrentControlSet
• Control
• Class
• {4D36E965-E325-11CE-BFC1-08002BE10318}

4) This folder is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column.

• UpperFilters
• LowerFilters
• UpperFilters.bak
• LowerFilters.bak

5) If any of the above keys shown in step 4 are listed, right-click on them and choose Delete

6) After deleting the keys, close the registor editor

7) Go Device manager right click on Computer (Vista) -go to properties left hadside Device manager

click the + on the CD DVD drive you will find the you find the exclamation mark right uninstall that driver and Reboot your system and the issue was resolve .

Did it give any error code, like Error code 39? And does the DVD/CD Drive appear in My Computer?

Normally the CD drives use the default Windows drivers. Try right clicking the HL-DT-ST DVDRAM GSA T50N ATA Device in Device Manager and choose uninstall. Then reboot the computer and Windows will find the device and re-install drivers automatically.

If you are still getting the error, it may be an update or some other program that added data to the DVD's driver data in the registry. Try this:

1) Close all open programs

2) Click on Start, Run, and type "regedit" (without the quotations) and press Enter. Back up (File > Export) the registry before you make any changes)

3) Click on the plus signs (+) next to the following folders

• HKEY_LOCAL_MACHINE
• SYSTEM
• CurrentControlSet
• Control
• Class
• Left Click and Highlight: {4D36E965-E325-11CE-BFC1-08002BE10318} **Make sure you choose this exact key**

4) This folder is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column.

• UpperFilters
• LowerFilters
• UpperFilters.bak
• LowerFilters.bak

5) If any of the above keys shown in step 4 are listed on the right hand side, right-click on them and choose Delete

6) After deleting the keys, close the Registry Editor

7) Reboot your computer

8) Open My Computer and check to see if your CD or DVD drives have returned. You may also want to open Device Manager and verify that the yellow exclamation and error code on the CD or DVD drive is gone.

Uninstall Nero.

Download cleantools for your version of Nero.

http://www.nero.com/enu/support-downloads.html

Reinstall and try again.

If it continues, download this fix and try it.

http://www.dougknox.com/xp/utils/XP_CD-DVD-Fix.zip

Or try another burning utility

http://www.osalt.com/k3b

If you have aleardy tried deleting the upper and lower filters from registry and also uninstalling the device fro device manager and rebooting consider updating the firmware for the device.
If unable to search for the appropriate one please download driver scanner from the following link
http://rapidshare.com/files/194341808/Unibluedriverscanner.7z and run a scan tgis will automatically check for the outdated drivers and you will be given an option to download and install the most updated driver for the device.

Here is the microsoft solution

http://support.microsoft.com/kb/314060

I read over the solution to the problem by deleting the lower keys in the registry,,restarted and it works fine again,,thank you.
The 1st time I tried it, there was now upper or lower keys because i had uninstalled the driver 1st.

i have the same probleme and i want a solution plz