convert all to mp3

Free RM to MP3 Converter - Freeware convert RM to MP3.
Free RM to MP3 Converter can convert Real Media files to MP3 files which can be played in MP3 Players. All Real Media formats (*.rm, *.ra, *.rmvb) are supported.
http://www.rm-mp3.org/

Free WMA to MP3 Converter - Freeware convert WMA to MP3.
Free WMA to MP3 Converter can convert Windows Media files to MP3 files which can be played in MP3 Players. All Windows Media formats (*.wma, *.wmv, *.asf) are supported.
http://www.wma-mp3.org/