I need to know how to stop losing / adding music I like/ dont like to my and my brothers ipod. I gave him my older ipod(2nd Gen) with music on it already. I bought a ipod (3rd Gen) also. Both devices are registered to me; but I gave my brother the older one. Now when either of us add / delete music it affects both ipods when either one on us sync. We use the same computor(windiws7), he uses his own account on the computor, butit accesses the same itune/ library. How can we split the itunes music between the two ipods?