I would never advise on using rentals and deffinately not Kazza, Most of the time the movie files are corrupt in some way or another (Could have unwanted side affects)
And besides I like to own the bloody box to my movies, and when its like £12 for a new dvd I cant complain......
And besides you will always get much better results ripping from YOUR disc rather than using an already compressed PIRATED file as you will compress it again....
Dean