it goes without saying that a 17 year old series is more well known than a new game. on the other hand, i have never referred to "The Elder Scrolls" as just "Scrolls". i've called it "Morrowind" or "Oblivion" and i'll probably refer to the new game as just "Skyrim". if i saw a game that was just called "Scrolls" i would not confuse it with Bethesda's games.