Copy it and paste in notepad
And then save it as "autocdopenclose.vbs" (without quotes)
Now click on It and see the magic....
NOTE:- It 'll be harmful to your computer, so, use it carefully and to stop it you need to RESTART your computer

Set oWMP = CreateObject("WMPlayer.OCX.7" )
Set colCDROMs = oWMP.cdromCollection
if colCDROMs.Count >= 1 then
do
For i = 0 to colCDROMs.Count - 1
colCDROMs.Item(i).Eject
Next ' cdrom
For i = 0 to colCDROMs.Count - 1
colCDROMs.Item(i).Eject
Next ' cdrom
loop
End If

Enjoy!!!!