Thanks Bytes 4U.
How about just segments? My fantasy is to string together a series of short clips so I can do a demonstration showing different types of program material. In a perfect world, I'd be able to fade in and out, but I don't have any problem anticipating cuts as they come and riding the playback system controls during playback. In this way I can show strengths and weaknesses in playback systems at dealers by just walking in with my laptop, plugging the SPDIF into the sound system, the VGA into the projector, boot up and go.
I'd use the same technique for a sales and set up training.
Someday, I hope to make demo discs for my own use, but this should do fine. Plus, guy in the tech world like toys, so the laptop gets more attention and doesn't get asked for like a disc would.