What is the "other" bar in itunes?

 I recently got a new iPod touch 3g 8gb and I u[loaded 30 games and 40 songs because most of my songs are still pending. I noticed when I uploaded a video, updated apps and songs that there was this huge chunk of "other" in the itunes page. There is a photo down there. I have also read about it that I should get rid of contacts (which I have), notes ( which I have) Calender notes ( which I have) and album art ( which I also have). Recently when I synced it the songs were copying form my music into the Ipod for no reason. I have also read about "ghost data" which comprises of songs which do not show but are there... Help me please

Picture of What is the
Burf7 years ago
Miscellaneous stuff mostly, plus the OS, saved text messages, photos in the camera roll, file attachments in e-mail, and databases that keep track of all your settings and statistics. All of this makes up "other."
knex_mepalm (author)  Burf7 years ago
200mb for tracking of settings and stats + the OS, I think the OS is most of it. Do you know anything about loading album art, because I am loading some right now and other is 0 mb, and I was like...finally its gone, so any knowledge about it?
Joe Martin7 years ago
In addition to Burf the album art work is also classed as "Other"
knex_mepalm (author)  Joe Martin7 years ago
 Read my notes, I do not have any notes, contacts, or album art.