I've been trying to find a way to reduce the sizes of several MP4 video files. If I'm wanting to reduce MP3 audio files, for instance, I can load them ino Audacity and re-save them at a lower bitrate (at a loss of quality, of course). Is there a method (preferably free) for MP4 video? The videos are of people giving addresses, speeches, etc., so quality loss isn't as big of a deal as it might be with movies or whatever. Thanks for any help.
You could try Avidemux.
I'm using VirtualDub. Initially setting up everything (this was specifically for MKV demuxing and transcoding into MP4) was a PITA, but it's prety easy after that.