itunes wiped out my library
How do I revert to a version of iTunes that will let me play my whole music library on my device and my Sonos. The new "fixes" (read corporate culture) wiped out most of the library I had before I owned a Mac. When I first bought my Mac, it wiped out a lot ( contrary to what the salesperson said would happen) so I reloaded a lot of it from Cd's, but now it wiped out anything that iTunes doesn't think is worth listening to.(i.e.Ididn't buy from them). Can I use time machine, or something to revert to my good old days of music listening? I have my music library on an external drive because of past problems with iTunes.
iPod nano