Deleting Old Versions of Projects

Suppose I have a folder called Album 1 on my PC disk.  In the Album 1 folder there are various versions of a song: Song V1, Song V2, Song V3, and Song Final.
 
Now, I have backed up the final version sufficiently, and I want to delete all the previous versions: Song V1, Song V2, Song V3, etc.
 
It seems that I have to locate all the audio files for each version of each song and delete them.  This is quite tedious.  Is there a faster way to do this?

Sharke, You are probably right and I will probably end up doing that.  Since there are several folders with many songs in each, I was hoping there would be a trick to this.
 
Thanks.

It's such a simple solution and I didn't even think about it until yesterday when I balked at the prospect of using the clean audio folder function and read a post with this tip. Works perfectly. 

Another method is to delete the old project files, and then run CWAF (Cakewalk Audio Finder) tool from. It will identify orphaned audio files no longer needed by any project.

If you've actually opened those backup files, and have one of the tested copies offsite, big magnets from submarine generators up next to your hard drive will clean your platterz almost as good as a zero fill.
 
(Sum bs above, an a nugget or two, u call it)

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.