divx convert

It is to convert WMA to Zen Audio and it's free.

It allows you to convert MPEG-4 Audio file to Vorbis format with fast speed.

It can convert at relatively fast speed and give you the best output quality.

Zilla PDF to TXT Converter is a freeware to convert pdf files

FLV converter can convert avi to flv.

It allows you to convert a video file like FLV, AVI or MP4 in a MP3 file.

STP allows you to convert your paper documents into PDF files

FLV to MP4 Converter is an easy-to-use tool to convert FLV files to MP4.

the soft can batch convert FLV files to AVI/MPEG/WMV/MP3 video and audio formats

Auto Convert and Burn MKV to DVD Video Disc directly. (Freeware)