Can't Move rented movies Macbook to iPod Touch

Rented 2 Movies from iTunes. Downloaded both to Macbook. Syncing iPod touch to Macbook, selected Move the movies to iPod. Received error message Cannot move movies to iPod because they are in an unsupported format. Very Odd since they came from iTunes store and I have done this dozens of times before. An older movie that i had ripped did transfer ok. Movies are MPEG-4, rented "Protected MPEG-4". I am traveling and would like to have these movies on my iPod.