someone asked about checksum values in another thread, I believe he got his answer no thanks to me. but whilst I was trying to help I got stuck playing with pack/unpack. so now I have the broadbrush question of what would one use pack/unpack for? can anyone point at some realworld examples/code that might help me broaden my horizons? rds, jochem -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php