(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 oNDigital LiNear Tape. (1997-04-05)