On early discs with the DVD release, the file containing the film and the file with the bonus features were each named a variation of "CHARLOTTE," rather than something relating to the movie itself. This was done intentionally by those who created the DVD, in order to keep it a secret as to which exact DVD would be used for the main release to combat 11th Hour DVD piracy. The more common file is called something relating to Revenge of the Sith. Copies of the film titled Charlotte are valued more than standard releases.
Interesting.