This is really starting to drive me crazy. I bought the 128GB so I could keep as much "stuff" with me on the go as possible. Now for some reason when I sync, and have "Sync Music" and "Entire Music Library" checked (for 3064 songs) every other sync, it deletes the most recent playlists and the total songs ends up around 2836. Any idea what is going on here? Ive had enough wiping all music files and re syncing. It is also happening to my iPod touch, so I know its not the phone.