.mp3 links are gone from Harvey's post.

I think the larger question is whether or not to bother with record companies. I think your chances of reasonable financial return are much better on the DIY side of things these days than in the past when you had to have radio play.

You can raise funds for your CD project through kickstarter.com or indiegogo.com . Fully professionally pressed and published CD with artwork through discmakers. Distribution including digital rights management and so forth through CD Baby. Websites through Discmakers. Merch production and sales through Discmakers.

Advertising and fan base increase through Facebook, twitter, google+, reverbnation, etc.

In the end you will see much more return on your dollar going that direction on a probability basis alone.

So, don't go wringing your hands about what record companies would do with your demo. Work on making a finished product from the outset - on your own; then polish that thing like Harvey did - with real singing and real guitar playing and real mixing skills.