The inbuilt iSight video camera wasn't working in Skype or PhotoBooth. In both cases it was giving an "No video camera detected" error message. Rummaging around turned up this note that confirms the console view that there's a missing QuickTime fi...
I was given a DVD-RW that had 2 videos on it, which couldn't be read by ordinary DVD players, but I could see files on it when put in the Mac. My challenge was to get the videos playable on an ordinary DVD. Research in wikipedia showed it was writ...