Hi Guys,
I have been reading the lasty 4 pages, as I was looking for a solution which seems to be the same as the one Rastamandan has.
As I happen to know something about computers (Well, at least it seems that my friends keep coming to me with problems

), I think you are on the wrong track.
Let me explain:
I am working with a PIV 1.2Ghz, 512Mb Ram + 1 DVD writer and 1 DVD reader.
Since some days, I have the same problem as Rastamandan. When I boot my PC with a disk in one of the drives, XP recognises it. But when I remove it and place an other cd, it seems as if the explorer does not see the new disk, and gives me the message; " Please insert a new disk into drive ...".
As I am working with my pc a lot, this seemed very strange, so I looked a bit deeper. With ANY programm accessing the drives without using the standard XP drivers/dll's (for example Nero burning rom,...), you can see the exact disk info, and even copy it or copy an image! I have been doing some tests and I am sure it is a Windows related problem. The only things I recently changed are the install of (bloody) service pack 2, and the removal of CloneCD. I think it might be related to the last one, as CloneCD uses other ASPI drivers. I will keep looking and let you know what I found.
Val