BestSoft Convert to MP3 is a powerful mp3 converter from other videos or audios. It allows converting any Video or Audio to MP3 easily. Batch-convert unlimited Video or Audio files in the fast and easy setup interface. Multithreading are supported and the more files you convert the faster. Supported input formats:AVI, 3GP, MPEG, WMV, MP4, DV, MOV, M4V, VOB (the video format used in DVD), SWF, NUT, RM, RMVB, WMA, AAC, WAV, CDA, OGG, FLAC, APE, CUE, M4A, RA, RAM, AC3, MP2, AIFF, AU, MPA.