As far as I can remember, CSS isn't something avaliable to the common man. Only big media companies are actually able to make use of it, as it is not an area that is writeable with standard DVD-R discs... DRM is pointless if only those with money can use it...even the lay-man can produce content, and DRM should be used to protect his interests, not just those of huge corportations as it stands right now...


Soda_Popinsky - Does it have to be playable on a DVD player? Can you put it on a DVD, but require a Windows PC to display the documentary?

You may be able to use Windows Media Encoder to produce an encrypted / protected *.WMV file, and you can find license providers for that online fairly easily (Microsoft provides lists of license providers) and that will let you rights-manage your content pretty easily. Then a key is distributed online to allow the person to view the content, and after a certain date the keys would expire and you could no longer distribute them online and the files would effectively be worthless...seeing as the encryption within these files hasn't been cracked since the updates a year or so ago (and if it has, nobody has heard of it so it is unlikely anyone watching this documentary could do it).

As crazy as it may sound, Microsoft pretty much has the best solution for what you can actually do in your position... BTW, do note that there are fees associated with having a license provider manage your keys/assets...it isn't free unless you can find out more about it than I can...