http://www.theregister.co.uk/2004/06...structing_dvd/
This is the second attempt at creating a cheap method of mass producing films on DVD for "one time viewing" without the need to return them (bet Blockbuster would just love that).
Thing is, would you want to buy a disc which gives a brief viewing window once opened?
Also, is this not very likely to just have people ripping them using PCs?
Is there a window between films being available for rent and purchase still these days? It doesn't seem that way from what I've seen...