Is this normal? Last night i went to a friends house and i was installing stuff with his wifi. I also got several warnings saying i have low on disk space but i had something like 8.9gb in my "About" Section in Settings so i ignored it. Later my battery went out so when i can bak home, i plugged it into my computer and i see that i dont have any video or music files on my ipod. The name of my ipod is now Untitled Playlist Is this normal? Also it says Other - 5gb in the memory bar thingo.