1)   OJOsoft FLV Converter 1.5.3.0218
It can convert into all popular video formats including AVI, MPG, MPEG, WMV, MP4, MOV,3GP/3G2, ASF etc. It also supports converting video files to FLV. In the mean time it supports converting FLV to audio formats like MP3, WMA, M4A, WAV etc.