I think there is a setting where you can have the capture stop when there is, for example, 10MB left on the hard drive...I think it's in the preferences menu...it might be set to a higher value...not sure...
I'm guessing you're using Windows 98. If so, you're limited to a maximum
file size of about 4GB. Depending on your capture settings, you're
probably hitting this file size when your capture stops at 15 minutes.
Capturing 320x240 30fps 24 bit uncompressed would add up to just
about 4GB at that point. Am i guessing correctly?
You should download the new VideoFactory 2.0a and get the Video
Capture 2.5 that comes with it. It automatically closes the capture file
and creates a new one on the fly, so that you're then limited only by
available drive space instead of by the 4GB limit.