compression runlists ?

I have to understand interpreting the runlists( winthin the attribute
definition of data attribute ) of various compressed files.
I picked up two different sources of info : 1: - docs on sysinternals site
2: - ntfs
book by helen custer

they seem to contradict each other.
is there some one who knows how to parse those runlists,
pls help along with a couple of examples