How does iTunes prioritize loading to iPod when more than 5 accounts?

Question

Unfortunately, my absent minded son has opened up multiple accounts (4 as a matter of fact) when he has received iTunes cards, not knowing (until now) that his ipod will only take 5 accounts max. Given that his two sisters and I also have accounts, we have 7 on the same library. He does not sync the whole library and we have gone through his playlists to exclude his sisters' songs (which is an ordeal all on its own). I then reset his ipod and synced his playlist first, so that his four accounts and mine would be the ones which were loaded onto his ipod. This seemed to work until we included "music videos", which included some of his sisters' videos. I had assumed that they would not be loaded because the 5 accounts had been filled, but they did and the songs from his two most recent accounts were "de-synced". How does iTunes prioritize the 5 accounts and how can I make sure the 5 that we want are the ones loaded? Thanks in advance,
Kevin

Answer 1

i know you can only register 5 computers to use ipod
This is incorrect.
You can authorize a max of 5 computers to play your iTunes purchases.
how do i get rid of the accounts registered to my ipod
Accounts are not registered to an iPod.
Tp play songs in iTunes, you need to authorize teh computer. To authorize teh computer, play a purchased song. It will tell you that you need to authorize the computer by inputting your username and password.