I used the Rives BFK in another thread ( I made only the cover, not the inside). Inkjet does not respond as well with that paper from my experience, unless it is coated with the inkaid stuff, or some other medium for prepping papers for inkjet. I tried it once without it and the resolution wasn't as good. I agree though, the texture is pretty nice.
I have seen references where the cover looks like it's printed on some kind of canvas materal, and other's that appear more like a smoother worn out cloth. There are certainly some variances among the props