If the Sony Commander remote can operate the SACD player, you could then teach those commands to the 950's remote -- Sony's big universal remotes are pretty powerful, but the documentation (particularly on the older ones) is some of the worst I've seen. That's assuming, of course, that you prefer the 950's remote to the Sony (which I did, replaced a Sony RM-AV2100 with the 950's remote, which I in turn replaced with the excellent MX-500 remote from Universal Home Theater).

------------------
gonk -- Saloon Links | Pre/Pro Comparison Chart | 950 Review