sblum> This one could be xDELTA (!).

See

http://www.ldodds.com/delta/ http://freshmeat.net/projects/xdelta/?topic_id=52

Cheers, JMS

-- Dr. Nozomi "James" Ytow Institute of Biological Sciences / Gene research center University of Tsukuba Tsukuba, Ibaraki 305-8572 Japan