DLSuperCRV - Revision Delta-Undelta Compare Utility - Version 1.3 DLSuperCRV is primarily a Revision-Delta-Undelta Library Targeted Utility implementing a backward source revision delta of full source changes. The delta file helps reduce the storage requirement for previous back versions of full source code. Deltas can be stored in a library with a succession of back versions. Applying an iteration of back versions allows a user to recreate source for any level of archived source.The program can, also, generate deltas for files that do not have CR/LF separators (i.e. fixed length records)