Security for Record Containing Cassettes
Original Publication Date: 1981-Aug-01
Included in the Prior Art Database: 2005-Feb-12
Security of data on a record in a cassette is enhanced by placing a removable external optically-sensed label on the cassette with a corresponding internal label on the record itself. The recorder and host combination of using the cassette enables updating the internal label to the external label. Extent limitations on access are also indicated for facilitating recovery from errors and for providing additional security integrity checking. In order to improve security for removable record members, such as tapes, the following problems must be solved: 1. Reconciling external record label with internal record label; 2. Limiting use of a record to a certain area of the record, respective to the users;, 3. Eliminating record volume recognition for operating-system-dependent and user-dependent labelling.