Is it possible to have iTunes store music locally on the machine running iTunes as well as a second redundant copy to a NAS unit and perform automatic updates to the NAS as music is added/deleted so that the libraries stay the same? If so, how? I have been unsuccessful in finding out if this i possible or not. As always thanks for any input! David

If on mac then you setup a timemachine backup. If on Windows then pick your backup solution. Could use online such as Dropbox or software that backs up to a local NAS. Most network drives come with some form of backup software.

Supersync will do this.

http://supersync.com/

Just had a look at their website....interesting product that could solve a few issues I have with iTunes libraries that are relocated to NAS on MACs (every so often on reboot the library defaults back to the local drive path - doesn't do it on windows PCs)!

I cannot see anything in the documentation as to whether the synch'ing process can be automated, do you have direct experience with this program? is it purely a manual procedure, or can it be set to update the NAS either on change of a library, or daily at a predetermined time?

Synology cloud station works very nicely for this...

I've only used it on multiple Computers to sync Large libraries but one of the features is to set up a central library on a NAS to share. that should do exactly what you are describing.

it works very well and it is indeed automated.

Thanks Impaqt,

Its worth  a shot so I'm going to give it a go at the office first and see how it performs.....