Both of these iso images contain a SLF 44 i386 Network boot.  It is the same 
as in boot.iso.  They include other software such as rescue images and
alternate boot loaders.

The SLF.superduper.44.022307.i386.iso image is designed to fit on a small 
8cm 24min/210mb cdr.

The SLF.superduper.44.card.022307.i386.iso image is designed to fit on 
the small 50mb "business card" size cdr.

They both do network installs.  The only difference is how much other stuff
will fit.