bug discovered.

In the process of adding better 24-bit wav support and 32-bit wav support, I ran across a fairly large bug in our code that determines if the specified data file can fit in the wav file and how many bits should be used in the process. Tom and I talked and we have decided to change plans to fix this bug the right way by rewriting that part of the code. Until we finish fixing it, we won't be making many changes to improve wav file support.