I'm a proponent of naming files using a simple accession numbering system. Coding by date and content will always fail in the long run with large collections because these attributes are never unique. But I also think numbering systems should be mnemonic and correlate to the call number or item number of the original. Other metadata can be stored elsewhere. You'll also need a way to identify surrogate files. We append file names with an a, b, c etc. depending on if they are wav, quicktime, mp3, etc. I preface all files we create will our MARC Code, in our case, CU-SB. You seem to be at University of Alaska, Fairbanks which is AkU. I believe that eventually that digital content will live in shared repositories and this will identify the location of the originals. The master code list is at http://www.loc.gov/marc/organizations/orgshome.html David Seubert UCSB