Yeah, actually, that's where I originally got my CanalSat info from. I'm following the info provided from that first quoted part. (The second quote comes from where their discussion wandered off to talking about an Altibox VIP1963 set-top box, and ends up on an entirely different protocol...)

I'm still not sure what exactly is causing the current issue with the VIP1853, but I'll push up an update with a modified check bit, which with luck will make things better.

(By the way, can you tell me if the current version of Pierogi is working for you on other devices? I should probably make sure whether this is a problem specifically with the CanalSat protocol, or with Pierogi as a whole...)