IR remote controlling 4 DVD players

Hi, I want to control 4 DVD players from an old fashioned bell button.

When you push the button, the 4 DVD players go to next track at the same time.

I have: MAC mini; Arduino Diecimila; bell button; IR emitters; IR Phototransistor. Max/msp

I didn't purchase yet: 4 DVD players (looking at Sony for around 99$)

I can: connect the bell button to Arduino, and read the signal in MAX/MSP.

I cannot: 1) decode the signal from the remote, and read/store the code in MAX/MSP; 2) Send the code from MAX/MSP to the Arduino board, and there encode it and send to the DVD players

I need to have this ready 18th of May