Just to explain, doing SAVE AS in one PC location and one external location and then deleting the folder is certainly a foolproof route.  The reason I was looking for something else is that loading each song and resaving is extremely time-consuming.  5 minutes to load and 5 minutes for each of the two saves times 14 songs is three and a half hours just for that one album.

konradh
Where does one find this mystical utility?

Where else but the Utilities menu in SONAR? 
 
You can also run cwaftool.exe directly from Shared Utilities in the SONAR program folder without SONAR running. It's a good tool to get to know. Much more powerful, flexible and faster than Clean Audio Folder or re-saving projects when you need to clean up a lot of Per Project folders. Check it out.