Sound quality

I couldn't find a better place to post this, so I'll try it here. I'm working on sound for my game, and I've noticed that the quality of a given wav file is always worse when played in T2D than it is when played with another playback tool on the same system. I can have a 44 khz 16 bit stereo sound and it's pure under Windows Sound Recorder or Media Player, but it's slightly distorted in T2D. Not so much that it's a major problem, but it bugs me. Has anyone else experienced this problem? There are so many settings for the audio, I wonder if there's something in the default audio profile that is causing this loss of quality.

I'm including a recorded sample of a sound played first in Sound Recorder, and then played back in T2D. This is the same wave file, but the T2D version becomes distorted.

The Sound Recorder version:

www.eisonline.com/files/gg/gem1a.wav

The T2D version:

www.eisonline.com/files/gg/gem1b.wav

It's almost as if T2D is compressing the file on load, or changing it in some way.

Any suggestions?