> I need to transcribe the conversation from some videos. Its in .mov format. Is this possible?

It is possible.

> Or do I have to rip the audio from this?

Yes

> In that case how to do it, and will it be in WAV format?

mplayer -ao pcm file.mov

sox audiodump.wav -r 16000 sound.wav

--- (Edited on 11/10/2011 00:38 [GMT+0300] by nsh) ---