DVD playback over Multi-room by copying to the hard drive of a primary device in a networked multi-room system (NMS). The DVD content is saved to a hard drive and can then be retrieved by any of the remote devices in the NMS by accessing the program guide or the recorded programs list. The DVD menu can...http://www.google.de/patents/US7876998?utm_source=gb-gplus-sharePatent US7876998 - DVD playback over multi-room by copying to HDD
