1. River Past Wave@MP3

River Past Wave@MP3 is a simple and FREE software which converts between MP3 audio and WAV file. Select the file to convert from, and click on "Convert". It is that simple.

Hardware

River Past Wave@MP3 is tested to run on any PC with a Pentium III/Celeron CPU of 500 MHz or above. A sound card is required.

It may perform on a PC with lesser spec. However, we will not provide technical support if your PC is below the minimum specification we provided.

Operation Systems

River Past Wave@MP3 supports Windows 98 Second Edition, Windows ME, Windows 2000, Windows XP, and Windows Vista.

DirectX

River Past Wave@MP3 requires DirectX 8.0 or above. We strongly recommend that you always use the latest the latest DX (currently 9.0b) because it provides better stability and performance.

MP3 Codec

River Past Wave@MP3 does not include the MP3 codec. Instead, we use the decoder and encoder codec included in standard DirectX installation.

You Can downloaded it software at the url http://www.riverpast.com/en/prod/waveatmp3/download/

2. Shuangs WAV to MP3 Converter  

Shuangs WAV to MP3 Converter is a free MP3 conversion tool. It is equiped with a standard audio compressed encoder.It can convert WAV into high quality MP3, WMA or OGG files quickly.

You can downloaded it sofware at the url http://www.shuangsoft.com/downloads/MP3Converter%20Setup.exe