Useful link for people like me who are too cheap to buy an SQ Tester CD
 

You can burn most of these wav files onto a cdrom. They seem pretty useful, but then again I don't know too much about audio, so if any of the more knowledge people have anything to say, please do. Just wanted to share the wealth.

http://www.ebu.ch/tech_32/tech_t3253_cont.html