Wagner: Der Ring des Nibelungen / Solti, Vienna Philharmonic

Pros: 14 CDs packed with music galore

Cons: None whatsoever

The Bottom Line: This is the definitive collection. And until you listen to it, you won't know that it's filled with music you already know and love.

Review: One of the most ambitious opera works ever made, period. This collection consists of the following operas:

Das Rheingold
Die Walkure
Siegfried
Gotterdammerung

The whole tetrology is named Der Ring des Nibelungen, or...