I have played around with seemingly endless options for synchronising multiple iTunes libraries for a while now. The problem with ordinary sync options like Chronosync or SuperlexibleSynchronizer, though they are both excellent tools, is that iTunes has it's own system for maintaining order (just take a look at the album art folder), as well as for storing things like play count etc. This means that it's hard to keep track of everything in the sync process. (Should I update folder 0CC21615E6B1CFC1 or not? What is 04632DFDB66A2100.itc? Do I need to copy it to my Album Art folder?)

I tried Syncopation today, for probably the fifth time, and I have come to the conclusion that it's the best option (including other iTunes sync apps). It synchronises tracks, playlists and all sorts of meta data, including e.g. last played date. It does the job seemlessly and quickly across the (local) network, between two macs, in my case, though I believe it can sync more.

It's early days yet, so I may yet encounter some bugs, but so far so good. (I did see a single anomaly in the number of tracks, which I have to look into). I bought the app anyway... $29 is a bit steep for something like this, but for the simplicity it feels worth it.