Vista - Windows DVD Maker won't allow me to select 150 minutes of video

Hi
I have (so far) successfully burned a test DVD and viewed it on a stand
alone DVD player. My problem is: when selecting the video clips I wish to
burn, I am stopped at around 50% of the disk capacity or 78 minutes out of
150. DVD maker won't let me continue selecting and fill up the disk capacity.

Why can I only select 78 minutes of video to burn when the DVD will
apparently hold 150 minutes? Do I need to burn in sections? DVD maker help
files are useless on this point.

It is likely that there is a problem with your source files. DVD Maker
(like Movie Maker) does not work properly with files like mpeg2, divx, mp3
and others. I only import .wmv files to DVD Maker (made with Movie Maker)
and they work fine. Check your source files.

"Joanne" <Joanne@xxxxxx> wrote in message
news:58D167A8-63CE-4AEA-8818-69A7E716AF9E@xxxxxx