We have that CD and enjoy it, too!
We are planning to get from the library the audiobook of: Mozart Finds a Melody. We heard it advertise at the end of another audiobook.
For Rossini, we watched our first opera of his version of Cinderella (title was something like La Cinterola). Songs were in Italian but had English subtitles. Surprisingly, the kids enjoyed it very much. We got the dvd from Netflix. This one was 2 hours and 24 minutes, so we watched it over several sittings. Also, our library had a VHS tape called Rossini’s Visitor.