Bigkidz,
You are on to something, no you are not insane, you may be
hearing a difference. Plextor, the industry satndard in cd/dvd burners have just upgraded thier burners with black
trays to minamize light difraction from the laser.
Also if you remember all those tweaks with the green pens,
that was also to absorm excess light.
Both Memorex and PNY diamond make black, blank cd-r's.
I use them both and swear by them. They cost a little more
but are worth it. Remember to reduce your burner speed to 1X to reduce errors and you will have an excellent copy.
good luck!