There are several reasons you may need TuneSpan: you're running out of space. You have a big iTunes Library on your internal drive and you want to move some (or all) of it to an external drive. TuneSpan helps you do this easily and seamlessly while cleaning up after itself and allowing you to always keep track of where everything is .You store a lot of Movies/TV Shows in iTunes and you want to re-organize your media (i.e., move all your videos to an external drive). With TuneSpan, you can easily select a whole Media Type and move the files wherever you choose, while continually being able to see where the files are, move them around again, or restore them easily. You need more space temporarily.
TuneSpan offers a fast way to move gigabytes of files in your iTunes Library to free up space. Later, you can easily restore your files to their original locations while keeping your iTunes Library perfectly intact.You regularly add new Music, Movies, Podcasts, etc. With TuneSpan you can easily move older media (or media you don't listen to as much) to an external drive while keeping your default iTunes Media location the same. Is there anything TuneSpan can't span? Unfortunately, TuneSpan can't span files that aren't included in the readable XML iTunes Library file.