ImTOO MPEG Encoder

ImTOO MPEG Encoder is a converter that can convert audio and video files. It supports a large number of formats such as DVD, VCD, SVCD, VOB, AVI, DV, MOV, animated GIF, SWF, MPEG4, RM, WMV, ASF, WAV, WMA, MP3, 3GP, m4a, mp4, h264, YUV, MP2, OGG, AAC, and M4V.

The program supports batch conversion even if the individual files have different settings or different target formats.
The program includes a player that helps you convert only the part of the file you want.