The production company have announced that the series will not be released on DVD due to problems with copyright clearance for the music used.

Wikifonia is an on-line publisher of sheet music, combining a MusicXML-based technology in a wiki system, with copyright clearance.

Material is added to the Project Gutenberg archive only after it has received a copyright clearance, and records of these clearances are saved for future reference.

Here it is unnecessarily conservative, with no plans to make copyright clearances easier and so help "orphan" films (those with no apparent owners) become available to the public.

Grants in 2005 for copyright clearances have allowed PBS to rebroadcast the film as recently as February 2008.

Archive programmes (even those originally made by the BBC) are repeated less frequently than new commissions due to the costs incurred by copyright clearance.

However, some material is not available due to insufficient copyright clearances.

The programs were to be obtained through an agreement with the Orbita Technologies Corporation, which developed and sells the necessary equipment, along with Soviet copyright clearance.

The samples used in the single had not received copyright clearance, and were replaced in the US version.

Moffit was known to hear a new song on radio and have it arranged for his band the following week - sometime so fast that proper copyright clearances could not be obtained.