Voyetra's 'AudioSurgeon' Audio Editor program, although not a file conversion
program, it can perform certain file conversions such as To and From Wave to 
WMA using the "Save As" feature.

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NOTE: The MP3 capability is NOT available in Windows Vista. Not even 
      at the poor quality of 56kbps. The drop-down menu is grayed out.
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    http://www.turtlebeach.com/products/audiosurgeon/home.aspx

To convert a Wave to WMA (for example) open the Wave file in AudioSurgeon.
Now click on File then Save As. In the Save as type drop down choose the 
WMA format. Then click Save.

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Encoding MP3:
   This Software can Save MP3s up to 56 kbps. Not available in all systems.
   You can open, play and edit MP3 files (of higher rates) but you can only
   Save up to 56 kbps in the MP3 (ACM format) unless you have a 3rd party MP3 
   Encoding Codec from CyberLink installed on your computer. If you have this
   plug-in installed, you can use the higher Rates that this Codec supports. 
   A License for this Codec is available at: www.Cyberlink.com. 
   Please note that this may not always work and we do not support it for 
   Copyright reasons.
  
CODEC: Is an electronic device (a circuit consisting of an Encoder and 
       a Decoder) that converts analog signals into digital form and 
       compresses them to conserve bandwidth on a transmission path. 

IMPORTANT NOTE:
    We don't provide support or make any warranties for 3rd party products 
    nor is inclusion or exclusion considered a product endorsement or 
    rejection. This information is provided solely as a courtesy to our 
    Customers.
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