i'm not exactly sure what laws, but..
http://www.dvdshrink.org/where.html
here's a little blurb with an explanation.
http://forum.digital-digest.com/showthread.php?t=54464
guess what folks.. this is the current future of software distribution. except in the future there will be some insane dmca like law that makes it a felony for the downloader cuz it's 'illegal software.'