(DLZ1) A Lempel-Ziv compressionalgorithm which maps variable length inPUt strings to variable length outPUt symbols. During compression, the algorithm builds a dictionary of strings which is accessed by means of a {hash table}. Compression occurs when inPUt data matches a string in the table and is replaced with the outPUt symbol. DLZ1 is used on Digital Linear Tape. (1997-04-05)