copy buffer
A location created by the Microsoft Jet database engine for the contents of a record that is open for editing. The Edit method copies the current record to the copy buffer; the AddNew method clears the buffer for a new record and sets the default values; and the Update method saves the data from the copy buffer to the database, replacing the current record or inserting the new record. Any statement that resets or moves the current record pointer discards the copy buffer. For example, using the MoveNext method or changing the Index property of a table would discard the contents of the copy buffer.