Okay, this has probably been discussed before, but I already forgot the general concensus answer to it. The Voyager Golden Disc was on cybertron, with a message appended by G1 Megatron. Stolen by BW Megs and taken to the past. All that's pretty clear and obvious and we get BW that fills in the rest of its history. Now the real question... When did G1 Megatron ever get his hands on the Voyager Probes Golden Disc? The probe was launched in the 70s, Megs didn't awake till the 80s. He then died, and was reformated to Galvatron in 2005. So when was G1 Megatron ever capable of encoding a message on the voyager disc? And how did it get to cybertron and when? The probe itself didn't leave our galaxy till the 80s either, and considering space bridge use for travel instead of normal space travel throughout the 80s, that eliminates the potential of them finding it before it left our galaxy.