Can anyone suggest a good book on file compression? Or, does anyone know where I can find C source for a simple file compression routine? The program needs to be portable to Linux, MS-DOS, CP/M and CP/M-86. (I am capable of making changes in the code to accomodate different compilers) Of course, there are compression routines which run under each of these OSs, but I need to run the same routine under all four OSs. TIA for any help -- Glen 0/0