What if a new search term was created (like mix) that could provide a more detailed and specific purpose action? Here's what I have in mind:
Find duplicates based on title...would be nice if a few characters could be different (possibly)
Then look at duration and find all within 5 seconds
Now, find out if any of the results are on an Assorted artists CD
Those on assorted artists are most likely on a compilation disc and should be removed.
I don't really want to use this for a playlist but more importantly to just find the problem tracks and re-rate them by hand. Whenever I notice I have two copies, I manually rate the compilation copy 2-stars (my worst standard rating) and this removes it from my sync list.