Silverlight plug-in for Mac kept freezing up, more than the Windows version. Windows laptop didn't have video-out, so couldn't route it to the DVD Recorder. Various cameras didn't have capacity to record hours at a time, so pointed MacBookPro with built-in iSight at Windows laptop and let it run. Super-ghetto.
Also: Had to hack registry to keep Windows laptop from auto-locking. Downloaded macro program to periodically stop/start video stream because Silverlight still would lock up occasionally on Windows.