I use SuperSync to add music files from various networked Macs to the Mac I have attached to my stereo, and it does this well. I can thus use any of my Macs to rip CDs or download MP3s, and the files will automatically get added to iTunes on my stereo.

I tried to copy the iTunes Library files over the network as my solution before trying SuperSync. Copying works as a one-time trick, but once you have multiple library files out of sync, you can't sync them just by copying. SuperSync solves this issue.

There is a lot more to SuperSync, but as a new user, I haven't touched a lot of the functions yet. It appears well-priced if you plan to use it fully.

The support I received from SuperSync was nothing short of amazing. I downloaded 2.4.1, and bought it based on the demo. I ran into a bug with 2.4.1 that killed SuperSync and reported it. I got a response in email 7 minutes later. After sending in the crash report, I was sent 2.4.2 with the fix 2 hours later.

The current demo works fine, please note the (old) version numbers of previous reviews having problems with the demo.

I have no connection to the company--just a new customer who gave it a chance even with the low rating on this site.