How do I stop Windows Media Player 12 auto playing CD's?

"This is what i found when i googled for this problem, hope this works for you though this registry edit is meant for Windows Media Player 10:

I checked my other machine and found
the same behavior described above when
previously it did not autoplay a CD
when Media Player 10 was open. So I
poked around the registry and found
that the CDAutoPlay key was set to 1
on both machines under
[HKEY_CURRENT_USER\Software\Microsoft\MediaPlayer\Preferences].
I changed CDAutoPlay to 0 and things
are as they were before. Hope this
helps others users having the same
issue.

Link to the original post
In case you have to add it, CDAutoPlay is a DWORD 32-bit value."

"This solves the problem partially.

Make the following additions in the registry and the playback is not ""unrecoverable""

Open Regedit
Go to HKEY_CURRENT_USER\Software\Microsoft\MediaPlayer\Preferences
Create a DWORD with name ""MediaFolderDetectionDepth"" and set its value to ""0""
Create a DWORD with name ""NonMediaCountToAbortMediaFolderDetection"" and set its value to ""0""

Now, I put in a DVD with some media files, and mp3 playback does not stop. (previously this was stopping the playback)

In case of inserting a DVD, then I had to stop the playback and press ""Play Previous List"" in the ""Now Playing Window""

Restart is not required. (I see that WMP12 is reading the key atleast one time when the drive is inserted). May be my answer is incomplete. If so, someone please help me (I will also work on this)

I hope this was useful to some level."