Posted 14 January 2007 - 11:04 PM
If you compare both files, you'll see that they will have different bit rates.
Depending on the bit rate a file is saved at, it will determine the file size in the end. The higher the bit rate, the larger the file size.
Also, depending on the bit rate, your quality of the audio changes. There are different bit rates when saving a file in mono, stereo, 3d sound, etc.... each one of those formats will cause that same file to have different file sizes in the end.
If you take those files you have and play each of them, you should hear a sound quality difference. But in the end, the .mp3 format is the most widely used format for audio/music, and mainly because of it's resulting quality and compression vs .wav