Here's what I came across when trying to setup my 3000 for a Yamaha DVD S-530. When I learned play, pause, & chapter forward buttons to the TSU-3000 the learned codes worked just fine. However when I learned those very same codes to PENG through the TSU-3000, PENG changed the last digit only of the codes, the codes would not work, and although I could go back into the codes and enter the previously learned last digit, as soon as I exited, PENG would change the codes back to the ones that wouldn't work. What's that about?