Convert a video with one audio channel (left) to both?

Question

I have a home made DVD that for some reason only has sound in the left speaker. My audio system is fine. It's the DVD. Can iMovie (or other app) be used to route the left audio track into the right track as well so I have both audio channels working (obviously mono).
Thanks,
Steven

Answer 1

The problem is how to rip the DVD.
"Ripping" should not be required for a "homemade" DVD. The normal work flow here is to either copy the "main title" muxed audio and video files (VTS011.VOB thru VTS014.VOB) to your hard drive and then convert them to desired QT compatible audio and vide compression formats or use an application like HandBrake to convert the DVD directly to a more limited set of possible QT compatible compression options. (I prefer copying the files and using dedicated conversion software as it reduces the total combined disc access/conversion time requirements in most cases.
When I use QT Pro to look at these files, #3 is not viewable and, #1 only lasts about 30 secs of the intro, so I can't figure out where the content is hiding.
QT Pro is not required here. However, the QT MPEG-2 Playback component ($20) is required. Since you say you can see something, I must assume you already have this component installed. As to the ability to only see some "segments," the QT Player is very "fussy" about timecode breaks and will usually refuse to play succeeding content when they are encountered. Your best approach in such cases is to use a third-party, MPEG-based player engine that either ignores the timecode breaks (e.g., VLC) or has the ability to fix them (e.g., MPEG Streamclip).
Even the rip program HandBrake asks for individual files, so I'm held up even before being able to do what you suggest.
HandBrake does not "ask for individual files." It wants you to navigate to the VIDEO_TS folder since it needs to "see" all of the files to analyze the overall structure and generate specific menu options like title selections, chapter selections, alternate audio selections, etc. On the other hand, applications like iSquint, MPEG Streamclip, FFmpegX, Visual Hub, etc. use individual files or "sets" of files usually constituting a single title program.