Convert WMA to MP3

@echo off

:: Batch converts WMA files to MP3
::
::
:: Requires:
:: Lame - http://lame.sourceforge.net/index.php
:: MPlayer - http://www.mplayerhq.hu
::
:: Usage:
:: convertWMA.bat %%LOCATION_OF_WMA_FILES%%
::
:: eg:
:: convertWMA.bat c:\WMA
:: convertWMA.bat %%USERPROFILE%%\desktop\wma
::



:: Set the MPLAYER file path below
::

set MPLAYERPROGRAM="c:\program files (x86)\mplayer\mplayer.exe"

::
:: set the LAME file path below
::

set LAMEPROGRAM="c:\program files (x86)\lame for audacity\lame.exe"

::
:: +-----------------------------+
:: | DO NOT EDIT BELOW THIS LINE |
:: +-----------------------------+
::


if [%1]==[] goto :VARNOTDEFINIED
if [%1] NEQ [] set SOURCEPATH=%1


if not exist %MPLAYERPROGRAM% goto :MPLAYERNOTFOUND
if not exist %LAMEPROGRAM% goto :LAMENOTFOUND

set CURRENTLOCATION=%CD%
set TEMPFILE=%TEMP%\wma_convert_%random%.tmp
cd /d %SOURCEPATH%


dir/b %SOURCEPATH%\*.wma > %TEMPFILE%
for /f "delims=*" %%G in (%TEMPFILE%) do call %MPLAYERPROGRAM% -vo null -vc dummy -af resample=44100 -ao pcm:file="%%G.wav" "%%G"

dir/b %SOURCEPATH%\*.wav > %TEMPFILE%
for /f "delims=*" %%G in (%TEMPFILE%) do call %LAMEPROGRAM% "%%G"

goto :FINISHED


:VARNOTDEFINIED
echo.
echo Batch convert wma to mp3
echo.
echo Requires:
echo Lame - http://lame.sourceforge.net/index.php
echo MPlayer - http://www.mplayerhq.hu
echo.
echo Usage:
echo convertWMA.bat %%LOCATION_OF_WMA_FILES%%
echo.
echo eg:
echo convertWMA.bat c:\wma
echo convertWMA.bat %%USERPROFILE%%\desktop\wma
echo.

goto :FINISHED

:MPLAYERNOTFOUND
echo.
echo ERROR MPLAYER NOT FOUND
echo.
echo MPLAYER was expected at %MPLAYERPROGRAM%
echo MPLAYER can be downloaded at http://www.mplayerhq.hu
echo Download and install MPLAYER.
echo Edit the batch file and update the path.
echo.

goto :FINISHED

:LAMENOTFOUND
echo.
echo ERROR LAME NOT FOUND
echo.
echo LAME was expected at %LAMEPROGRAM%
echo LAME can be downloaded at http://lame.sourceforge.net/index.php
echo Download and install LAME.
echo Edit the batch file and update the path.
echo.

goto :FINISHED

:FINISHED
erase %TEMPFILE%
cd /d %CURRENTLOCATION%