I am looking for the URC discreet codes for my Pioneer Elite SC-05 receiver? Also, what is the latest version for updates for Live Update from the URC database?

which remote? It is listed in the mx 900 database as code set AXD7520.

I have an MX3000 and an SC-05. The codes are in the current database version (1.88), but I found that only about half of them actually worked. I had to learn a bunch of them because the database codes (specifically source selections) weren't giving me any response. For a couple of them, I even had to set up macros, because I couldn't even learn in the correct code (e.g., select a "working" source, then "next source" until I get to the one I want). With the direct IR input in the back of the receiver, the macros work perfectly (better than if I was using an emitter).

jj