Sorry, guess I wasn't very clear there, was I? Our collection will eventually consist of roughly 15,000 Mitsui Gold CD-Rs, each of which holds one copy of an analog recording. Say 6,000 will be in a semi-closed archive, used only when the mp3 copies do not have high enough sound resolution for our linguistic researcher. 9,000 will be stored in a closed archive, only handled to make another CD copy if one of the 6,000 is lost or damaged. Between the semi-closed and closed archives, we'll have five copies of each recording, each on a separate CD. Is that enough information? Thanks so much for your help. Holly Don Cox <[log in to unmask]> wrote: On 02/03/04, Holly Dzyban wrote: > My organization is currently in the planning/creation phase of a > digital recordings archive. I am trying to write the refresh plan, and > was wondering if anyone had any advice as far as how and how often to > check or replace the 12,000+ CDs in our collection. Are these commercial, moulded CDs, or are they CDs written in a computer? How often will they be handled? Regards -- Don Cox [log in to unmask] Save Indigenous Languages! HoChunk Renaissance P.O Box 457 Winnebago, NE 68071 (402) 878-4135 [log in to unmask] --------------------------------- Do you Yahoo!? Yahoo! Search - Find what you’re looking for faster.