It reminds me of that case court on copyright infringement for a completely silent audio track, just about a year ago. You may laugh, but it was for real, and real money was involved in the settlement.
I quickly found one reference here [findlaw.com], though I'm sure you can easily find more links [google.com].
Copyright on silence (Score:2, Interesting)
I quickly found one reference here [findlaw.com], though I'm sure you can easily find more links [google.com].