One simple way is to play the movie and record the audio with Audacity with the "What U Hear" or "Stereo Mix" input option (instead of microphone). The problem with this, of course, is that the recording process takes as long as the movie does to play. If you own QuickTime Pro, you can open the MP4 and Export "Sound to Wave." I haven't looked--does anyone know if there is a plug-in for QuickTime so it can play FLVs? My version of Windows Movie Maker can't deal with either MP4s or FLVs, but it can easily export the audio track to a WMA, by doing the following: * Import the movie into Windows Movie Maker * Drag the clip(s) to the timeline * Use the + tool to expand the video track to display both the video and audio tracks. * Drag the audio track(s) to the Audio/Music track * Save to my computer * Movie Maker will automatically make a WMA file. (I imagine there's a similar--or even easier--process in iMovie.) Steve -----Original Message----- From: School Information Technology Discussion [mailto:[log in to unmask]] On Behalf Of Raymond Ballou Sent: Tuesday, March 16, 2010 11:25 AM To: [log in to unmask] Subject: split audo from video have a user who wants to stip the audio off from MP4 (flip) or FLV (youtube) files. has anyone done that? R ______________________________________________________________ ______________________________________________________________ This email may contain information protected under the Family Educational Rights and Privacy Act (FERPA) or the Health Insurance Portability and Accountability Act (HIPAA). If this email contains confidential and/or privileged health or student information and you are not entitled to access such information under FERPA or HIPAA, federal regulations require that you destroy this email without reviewing it and you may not forward it to anyone. -- This message has been scanned for viruses and dangerous content by MailScanner, ClamAV and Bitdefender and is believed to be clean.