Hello all, I recently got my iPhone 5 replaced for a faulty sleep/wake button. I have successfully restored my data on my iPhone. But I have realized that my music isn't included. When I click on "Manually manage music and videos" on my iPhone it asks if I want to sync and erase this iPhone. My question is does this erase everything (contacts, apps, etc) or just the music and videos? I do not have any music/videos on my phone right now and can't manually add anything either. I have also recently reinstalled windows so I do not have access to the old iTunes program. Any help on clearing up exactly what the sync/erase does will be greatly appreciated.