My problem started like this.
During the last week my iTunes has been freezing
a few seconds after opening it.
Basically I have been unable to use iTunes
for the last week.
I notice reports of similar problems:
I sent a feedback to Apple. I do not know what else to do.
The problem seems to affect only Mac. I have my library on an external
HD and today I could access it through iTunes running under Windows
on a PC (not mine), though loosing some info in the process (eBooks and Podcast).
It is ridicolous that their software does not work on their machines
running their OS but it does work on other machines running the enemy's OS.