I am using this app(http://www.imoresoft.com/itunes-cleaner…) to rebuild and delete duplicates on my iTunes music library.

I’d highly suggest DRM Media Converter in this case. The converted video of NoteBurner seems not that good. I have been with the program for a while and it’s quite good at strip drm from protected videos. Here is the details: http://www.imoresoft.com/drm-media-conv…