Hello Jchandler,
One problem may be that not many want to hear about Windows Media Player updates. But having said that, you need a better headline. Try this one:
HEADLINE:
Want to Get the Most Out of Your Windows Media Player?
SUBHEAD:
Sign up for our free monthly newsletter and get All the tips, tricks, and secrets you can handle!
Then, just write a paragraph or two explaining the benefits of your newsletter. That should boost your response rate!
-- Rachel