Which operating stsytem are you using? (XP or Vista)
If you remove the CD from the drawer. Turn off the computer and then restart it. (A cold boot) Open Windows Explorer and click on the CD ROM does anything show, even though the drawer is empty? You might see a list of the older album`s songs & a header message that says "these files are waiting to be ....." If so look for a link along the lines of "Remove Temporary Files"