I have to thank Jeff (jefe1) for this.
If you check out Mark Anderson's list you will find that "I Nomadi interpretano Guccini" was issued on cd with the original SQ quad master.
Jeff found a new remastered version done this year, but what he found is an improved version of the origina quad master.
The good new is that the cover has changed...
well, you have to see it
the first is the "old" cd cover and the last is the new one.