This tar file contains the following files:

0.mi8                        base mandelbrot picture (1140*890*8)

Makefile

HuffCode.c                   compressing of mandelbrot data files
HuffCode.h
KreyCode.c
RunLengthCode.c
UweCode.c                    *this one has proven to be very useful*

MandIO.c                     i/o routines handling mandelbrot file formats
mandio.h

colormap.h                   utility routines
mandtool.h
pretime.h
mand.h
command.c                    command interpreter
data.c                       support database files (i.e. .photo database)
pretime.c                    estimate computing time
util.c                       compose and decompose julia picture names

info.c                       info program
mand3.c                      number crunsher
mandtool.c                   interactive tool

mand.icon                    mandelbrot icon for mandtool

color.cursor                 cursors
cross.cursor
mand.cursor
select.cursor
zoom.cursor
left.arrow
right.arrow

info                         executables
mand3
mandtool

There is a naming convention for mandelbrot pictures:
0		whole mandelbrot set (base picture)

a		first selected subrange
b		second subrange, etc.

aa		first subrange of subrange a
ab		second subrange of subrange a

aaa		first subrange of subrange of ...
		etc.

The names will be compressed:  aa -> 2a
			       ccfaaaa -> 2cf4a

Names of julia pictures are prefixed with the coordinates:
i.e. X1.456Y0.555:0
     X1.456Y0.555:a

File suffixes:
.d		description file
.m		data file (iteration values)
.mi8		sun raster file with mandelbrot info header (m_andelbrot i_mage)

Documentation: source code

Don`t despair
Uwe