From Free Music Converter Software:
With Clip to MP3 Converter you can convert YouTube clips, DVD videos and video files to MP3 audio format. The following video formats are supported on input: AVI (DivX, xVid), MP4 (MPEG-4, H.264), WMV, MKV, ASF, VOB, MPG, MP2, MOV, FLV, SWF etc. You can also convert clips from popular online resources, such as YouTube, Vimeo, DailyMotion. And finally, if you have a video clip on DVD, you can rip it, and extract music too. Convert video clips to MP3 audio format. Additional output formats are: M4A, MP2, OGG, WAV, WMA, AAC, AC3, AIFF, AMR, AU, FLAC. Convert one of the following video formats to MP3: AVI, MKV, MOV, 3GP, MP4, MPG, MPEG, AVM, ASF, WMV, AVS, FLV, DAT, OGM, VOB, RM, RMVB, TS, TP. Convert YouTube clips to MP3. Vimeo, Daily Motion and other sites are supported too.