I dug up a 450. It has 4 code sets for samsung under audio. I entered them into the remote and archived it.

I wasn't sure if you meant that or it you meant you needed the OEM remote manually learned into the 450, in which case, I would need to know where to find that particular product you are looking for. Sorry for the confusion.

Here is the 450 archive, though I think it might not be what you are looking for, as if you have a 450 you could have added these yourself. More information please. :-)