Ring cycle
The Ring cycle is a cycle of four operas, only mentioned in a scene in the  for the  fifth season episode .

The Ring cycle was said to be composed by Wagner, and take nine hours to watch in one sitting. Jean-Luc Picard and Fleet Admiral Gustafson once saw it together, and the next day Gustafson went back to see it again.

One classical masterpiece that was part of the Ring cycle, "Ride of the Valkyries," can be heard on a Paramount Home Entertainment preview for the Star Trek Video Collection which was found on the , ,  videos, and strangely enough, on the video release of Good Burger from a subsidiary of what was once the parent company of Star Treks studio until 31 December 2005 that is not part of the Star Trek video collection.

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Unused production material