I have had this problem building this DVD in CS3 (Windows Vista). Every time that I build the DVD for this project (or any other for that matter), when it gets to Building Transitions (which there are none in the project) it gives me a "General Error" message. I've searched the forums and reset the media cache, with no luck. Has anyone else had luck fixing this? I took the project over to another computer and it worked wonderfully there.
Adam, did you ever find a fix for this? i'm using CS2, but i've got a similar situation. All is fine until i 'Preview'; then for that point on, every time i try to re-preview, i get the "General Error" message. i did find one .mpg file (mp24x3NTSC720x480.mpg) in the Source/Video folder of my project seems to have problems. i suspect it may be the 'preview' video file that Encore builds on preview request, but anyway, when i try to play it, it won't play and media player (ver.9) says it can't find the file.
i've been searching various forums all day with no success.