CD Rom Drive still not working

I thought your proposed solution had worked, as I can play CDRoms in the drive.  However if I put a blank disk in and either try to open it through Explore or by dragging something into it it says "D:/ is not accessible.  Incorrect function".  Any ideas?  

Many thanks,

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What proposed solution are you referring to. Please link to it. Otherwise, cut and paste into the comment section.
KateHamiltonAuthor Commented:
Here is the procedure that I followed, which at first at had appeared to work:

Open the Registry Editor: - Click on Start then select Run - Type in: regedit and click OK.

<>Backup your registry by:

1. Highlight My Computer by clicking on it once.
2. At the top of the page you should see File, click on this and then select Export Registry File.
3. The following screen will allow you to select where you would like to save this backup and what file name you would like to save it as.
Please note at the bottom of the screen where it says export range All; this should be selected to ensure your entire registry is backed up completely.
5. Give the File a name and click on the SAVE button (this will bring you back to the registry editor)

<>Remove the UpperFilters and LowerFilters values by:

1. Expand the HKEY_LOCAL_MACHINE key (looks like a folder) by double clicking it (or clicking the + next to it.) Expand the SYSTEM Key
2. Expand the CurrentControlSet Key
3. Expand the Control Key
4. Expand the Class Key
5. Please look for a key containing the following string of letter and numbers:


6. Highlight this key by left clicking once on it.
7. On the right hand side you are looking for UpperFilters and LowerFilters, once you find these please delete them - Highlight them (clicking on them once) and then delete them by right-clicking on them and choosing delete (or pressing Delete on your keyboard.)
8. Close the Registry Editor, click on File and then click on Exit
9. Restart your computer. Your CD/DVD Drives should be back and functioning.

Any ideas?

Many thanks,

Blank discs generally cannot be written to by just dragging stuff to them. Win XP has a function that allows you to 'cue' files to be written to the cd, but I have never used it, and never will. Nero provides a similar function. However, it would be best to try a cd that has something on it to test whether the drive is working. Try removing a large file from the cd, then running it.
After which, you can use a 3rd party program to try to burn to a blank cd.

Other option is to use a benchmark tool to test the cd drive.

Another option is to try to boot into Ubuntu cd and see whether the same problems apply - if so, then reinstall windows to fix (easier than rooting around in the directory).

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KateHamiltonAuthor Commented:
Thanks.  I haven't yet been able to work out how to do a "benchmark tool" or "boot into Ubuntu cd" - please could I have some help with this?

Re. Kerm007's suggestion, it's not really CD burning that I need to know how to do so much as being able to use / access the CDRom drive, and the info while interesting doesn't sort the problem.  Kerm007 - is there something I can do in the directory which might sort the problem - it half worked what you suggested I did last time.

Many thanks,

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