DVD TSSTcorp Cannot be Accessed in Windows  

I have suddenly lost the ability to access my TSSTcorp DVD in Windows . This is showing a yellow exclamation mark next to it in DM with an associated error message quoting Error 19.

PC boots OK from bootable DVD disks when inserted in this drive but the drive is invisible in Windows Explorer.

I have tried deleting the drive in DM and re-booting the PC . All this does is to produce a message which says that it was unable to load appropriate software.

I have also attempted to follow several "solutions" which navigate you to the section of the Registry where you are invited to delete the "Upper and Lower Filters"

I do not have either ot these showing in my Registry.

Can anyone provide a solution to this problem ?

Try this:
Your CD drive or DVD drive is missing or is not recognized by Windows or other programs
Your CD or DVD drive can't read or write media
The CD drive or the DVD drive does not work as expected on a computer that you upgraded to Windows Vista

Thanks for the reply. I re-checked my Registry and found the "Lower Filter " entry which I deleted as suggested in the reference which solved the problem. My DVD drive is now working normally again - thanks for the help.

You are welcome.