I have been thinking for a while how neat something like this would be. I'm glad I found it. It does what it says it should do, even adds up fractions of a second, making for a rather interesting number. The only issue I have encountered in 10.5.1 with iTunes 7.6 is if I try to make it calculate my entire library, I get the message, "Can't make missing value into type number. (-1700)"