I'm very slowly trying to get to grips with iTunes, and wondered whether someone might be able to shed some light on the following problem; All my music and videos is stored on an external hard drive which I leave at home. However, I do borrow cd's from colleagues which I rip onto my local laptop hard drive. Usually I wait until I get home before transferring the new music to my external drive, and then add it to iTunes and sync my iPhone4. Is it possible to sync the media on my laptop as a 'one-off', and then transfer it later to my external drive? The last time I tried to sync when my external drive wasn't connected ended up with me wiping all my media from my iPhone, which was slightly annoying to say the least. I'm not sure whether this is because I've set the external drive as the 'home' drive where all my media is held. I would guess there's some form of manual sync option, but if this is the case how would I switch it back so it syncs automatically when I'm at home? Sorry for the long drawn out question, hope it makes sense and someone will be able to help. Cheers.