Sarge,
Unless otherwise stated in your contract, keep all your tapes and digitized files as stock footage. Obviously, you’ll clear projects off your drive, but keep an archive of the project file and the digitized footage on a harddrive and store it. You may do some more work for the same client or want to pull some files off to use as stock footage at a later time. The main thing is to keep it all in as universal a format possible for the inevitable need to shift everything to a more current medium.
