Does anybody know of which kind of IR codes the Sony RM-ED010 uses? I'd like to control my logitech Z-5500s with it, but i'm pretty much out of luck so far.

They would pretty much well use the standard Sircs codes which is the Sony standard. My website (http://www.geocities.com/CapeCanaveral/Launchpad/4652/sircs.htm) which is not upto date has some info on it. Also take a look at this site (http://www.hifi-remote.com/sony/) which has a large list of the Commands on it.

Thanks. Any way of reprogramming the remote to support my speakers?