When your file list looks something like this before using JPGSPECS.EXE:

GARFIELD.JPG   54       54k   Garfield killing computer with chainsaw
GARF2.GIF      70       70k   Another picture of Garfield
ODIE.JPG       40       40k   Odie with icecubes on his tongue

After using JPGSPECS.EXE it will look like this:

GARFIELD.JPG   54       54k   (640x480,color) Garfield killing computer with chainsaw
GARF2.GIF      70       70k   Another picture of Garfield
ODIE.JPG       40       40k   (320x200,color) Odie with icecubes on his tongue

With Renegade you can insert the GIF specs, resulting in the following:

GARFIELD.JPG   54       54k   (640x480,color) Garfield killing computer with chainsaw
GARF2.GIF      70       70k   (800x600,16c) Another picture of Garfield
ODIE.JPG       40       40k   (320x200,color) Odie with icecubes on his tongue

Nice, isn't it ?