Luckily, there are a number of methods--some free, some with small costs--that can make this process easier.
Home Sharing, available in i Tunes 9 and higher, allows i Tunes libraries on the same network to copy items back and forth.
This works on up to 5 computers and requires that they sign into i Tunes using the same i Tunes account.
Itunes consolidating two accounts
You'll find the shared computers in the left-hand column of i Tunes.
Home Sharing does not transfer star ratings or playcounts for music.
Some apps will copy via Home Sharing, some may not.
The word came straight from an Apple rep who contacted a frustrated user after they emailed bossman Tim Cook—so we're assuming this is legit.
This will not only save you the hassle of having to remember multiple passwords in addition to frequent logging in and out, but allow the smooth shiny seamlessness Apple's been touting for i Cloud all along.
So with the impending launch of i Cloud, which login will you use? Mac Rumors reports the company's "working on" the ability to consolidate all of your myriad Apple IDs into one.And, of course, it just makes a whole lot of sense.Not every household needs more than one computer running i Tunes.In fact, as it becomes more common to stream music and videos to connected devices throughout the house, more homes may have just one PC.As that happens, you'll need to know how to consolidate i Tunes libraries from multiple machines into a single, large i Tunes library on the new computer.Due to the large size of most i Tunes libraries, consolidating them isn't as simple as burning a CD and loading it on the new computer.