Hopefully these simple directions will help those who are not master computer techs like me:) God knows I couldn't get it right to save my life! But a light bulb went off in my head and this is how I did it. Almost embarassing to mention;
When looking for this file in device manager please consider the following Steps:
To resolve this problem, remove the affected filter drivers. To do this, follow these steps:
1. Click Start, type regedit in the Start Search box, and then click regedit in the Programs list.
If you are prompted for an administrator password or confirmation, type your password, or click Continue.
2. Locate, and then click the following registry subkey:
ie., 1. Go to HKEY_LOCAL_MACHINE and click on it.
2. part of the sub directory will appear
3. then click on SYSTEM
4. You will then see Current Control Set click on it
5. And so on......get the picture now!
Whew! Now follow the rest of the directions and you should have any additional problems
Caution There can be many instances of the registry subkey that is mentioned in step 2. You must make sure that you are in the appropriate registry subkey before modifying the UpperFilters and the LowerFilters values. To verify that you are in the appropriate registry subkey, make sure that the Default data value is DVD/CD-ROM and the Class data value is CDROM.
3. In the right pane, right-click UpperFilters, and then click Delete.
4. Click Yes to confirm the removal of the UpperFilters registry entry.
5. In the right pane, right-click LowerFilters, and then click Delete.
6. Click Yes to confirm the removal of the LowerFilters registry entry.
7. Exit Registry Editor, and then restart the computer.
Source : http://forums.cnet.com/5208-12546_102-0.html?threadID=241915&start=45&tag=forum-w;forums06