1)   Cool Free Audio to AMR Converter 5.1
Cool Free Audio to AMR Converter is an all-in-one and professional AMR audio conversion software. With Cool Audio to AMR Converter, you can convert almost all media including AVI, WMV, MPEG, MP4, ASF, VOB, 3GP, iPhone, MOV and FLV video and MP3, AAC.

 2)   AUAU All Media to MP3 AMR M4A Converter 1.0
It owns all the functions of AUAU series and can convert all media such as AVI, WMV, MPEG, MP4, ASF, VOB, 3GP, MP3, AAC, AC3, AMR, M4A, OGG to MP3, AAC, AC3, AMR, M4A, OGG audio formats, and also supports converting between all popular video files.