I've been having a good bit of trouble out of the newer Yamaha DVD players, mostly the DVD-S659 & DVD-S1700. It seems the learned codes (from either DVD player remote) respond VERY poorly to IR OR RF commands. Sometimes it works and sometimes it doesn't.
This problem persists even into some RTi controllers we use (namely the T4 and T3). I went so far as to swap a DVD-S1700 for a Denon DVD2910 in a conference room just so they could watch some instructional videos for the weekend.
ANYWAY...Just wanted to see if anyone else was having similar problems and see if there are any known fixes. Any help would be appreciated.