I'm guessing the search code is interpreting it as search for posts containing blu, but not ray. I should start a "search sucks" thread on the ubb side to see if maybe one day it will get fixed. As currently, it looks like google also sucks for the boards, as "blu-ray site:empegbbs.com" failed to find that older thread as well.

edit: nope, not that. Searching for blu-ray is failing to find my test post that only contains blu. I'll dig deeper later.