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Possible Duplicate:
Are there any good wma to mp3 converters?

How can I mass convert audio files from WMA to MP3?

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marked as duplicate by slhck, DMA57361 May 16 '11 at 10:56

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Which OS are you using? It's quite easy in a *nix environment to do this in a terminal. – boehj May 16 '11 at 7:15
Exact duplicate, I think. The answers to that will answer this precisely. – jcrawfordor May 16 '11 at 8:22

SoundConverter can convert from any format that you have GStreamer read plugins for, and to several popular formats.

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FFmpeg is another great option. You can compile it yourself, or grab the Windows binaries from

Assuming all your wma files are in the same directory, you can run a batch command like

FOR %I IN (*.wma) DO <path to ffmpeg.exe> -i "%I" "%I.mp3"

in the directory containing all your wma files.

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