open source dvd software/player...

[bruce]

hey...

trying to find an open source app to create a dvd file, as well as play the
file...

can anyone give me insights/pointers to software that you've actually
used/got exerience using/knowledge of...

basically, i'd like to be able to create test dvd files.. and to play them.
i'd also like to experiment with incorporating information within the dvd
information in a manner that can't be seen by the human eye, and then be
able  to extract the information with a separate app..

trying to search through google isn't causing any real hits!

thanks

bruce
bedouglas at earthlink.net