UnDup - UnDuplicate (delete duplicate files)

I've got a ton of midi files I've scammed off various web spots.
And -NONE- of em had nice clean names.
They're either named AWESOMEMID.MID or else flying_in_a_blue_dream_by_joe.KAR...
I want it named JoeSatriani_FlyingInABlueDream_lyr.mid

And then I come across the file again.
This time it's named WAYCOOL.MID (didn't you love those 8.3 char DOS filenames?)

I've got jillions of files!  How do I get rid of the duplicates???

Welllllllll, UnDup of -COURSE-  (Durrrrr!)

Pick a top directory to list



UnDup will pop up notepad with the full listing sorted by file size
grouping the same sized files together with blank lines in between groups.



If you come across a duplicate, delete the line.
It'll be marked for deletion by it's ommission in the file.
(I did it this way because there will hopefully be fewer duplicates than
 non dups and it got to be a pain deleting ALL the non dups :)
So delete the line to kill off the file.



Now that you've saved the file, click this guy to let UnDup get underway...



UnDup pops up notepad to confirm the files you wanna kill



Then...  BAM!  They're outa there...