Hey NakNo worries Harp!
Tank, here's a link to a free Calibration disc. First link is for a Bluray burner, second link for a DVD burner.
I finaly calculated my fl and im a little surprized by the results. I'm getting 14 fl with 108" screen and i'm surprized by how bright it looks. I've come to the conclustion that i feel that 14 fl is so bright because im comming from a grey screen and my fl was probably under 10 fl. Anyway im glad that you recommended me this light meter because i'll be able to keep a reading on my bulb as it ages and i'll better understand what's going on.
I'm also getting 37 fl in living room mode which is great for sports.