I purchased a Pronto before getting into Cinema remotes. The ProntoEdit software that we use to program the pronto on our PCs will capture and display a representation of the IR codes.

The format used is fairly well documented, and has shed worlds of light on how all remotes work and how the IR signal system for remotes works.

If you want to confirm your thoughts about how the ONEforALL remotes, I suggest perusing the Pronto Forum in this site. Search for "IR code format" or something similar in that forum.

Dave