Now... I approve of this venture in general. The creation of something that will last forever and be around long after we are wiped out that will hopefully be discovered later on is a pretty cool thing. I especially like the intuitive and cross-cultural way of hinting at microscopic detail, by spiraling the text down smaller and smaller.
My only gripe is the materiel they included. The Bible? Genesis of all things? Perhaps it's just my anti-religious sentiment showing through, but wouldn't it've been better to include some of science's best and most important discoveries? Something to show off how clever we were? E=MC^2 comes to mind, as do the calculation of the uniform background big-bang heat, the trajectories of our deep-space probes, the periodic table of elements... countless other examples. Showing people two thousand years in the future that we were a bunch of technologically advanced zealots is probably giving the wrong impression.
I realise that the purpose of the Rosetta Disc is to provide a key to translation of our various languages for the benefit of future archeologists, but why the bible? Why not another work of fiction that uses more commonly accepted sentence structure and word meaning?
"Show me an operation that is running smoothly and I'll show you someone who's covering up mistakes. Real boats rock." - Frank Herbert