I have a CD for conducting practice TOEFL tests - however, I can't hear the audio portions of the test. Usually the audio portions are meant to be heard on headphones - but I reckoned it should work fine with my Speakers as well??

All volumes are max, but I can't hear anything. Interestingly in another CD I can hear everything else in the CD except the questions again.

Can you pls help me out qick? I need to take this practive test today...