Exporting audio files hogging up storage space

[BrianHayesMusic]

I've been exporting several wave files from iReal to my computer with great success. Each time I get the files onto my hard drive through "filesharing" in iTunes, I delete them from iTunes, thinking that this will keep my storage space freed up on my phone. It appears, though, that something is being stored somewhere because all of my storage space in my phone has been hogged up in the process. I only have a handful of playlists stored in my iReal, totaling 1,500 songs and yet it shows 7.5 gigs of documents and data taking up space on my phone. Does this sound right? As I mentioned, I'm deleting them from iTunes each time I transfer them to my computer. Are there hidden files somewhere that I need to get rid of? Does 1,500 songs taking up 7.5 gigs of space sound right?