Sometimes dvd-slideshow can overwhelm your system or just doesn't work right and ends up crashing. Try these two tricks to see if they fix the problem, and then notify me.
- Try using the -nosmp option to disable dvd-slideshow's smp optimizations. This just runs fewer processes in the background.
- Try using the -mpeg2enc option to force dvd-slideshow to use the mpeg2enc encoder instead of ffmpeg. If ffmpeg is crashing for some reason, this should work for you, but mepg2enc is slower than ffmpeg.