I appreciate the interest in my question. The real issue is not the RS-232 command but rather how do I get the data from the remote to the MSC-400 and then from the MCS-400 out to the changer. The changer I am using is the BDP-CX7000ES. The reason for all this is because the 7000 does not accept IR commands for direct disc selection, so I was looking into an alternate such as DMX-3000. DMX-3000 uses only IR commands so I thought there might be a way to convert them to RS-232 using the MSC-400. Of course none of this would be necessary if Escient would keep their word and release a software update for the Vision VS-100, which I bought just for this purpose.