Qbix wrote:I wouldn't count on that statement
Demo's don't need file acces.
Only on the inital loading of a segment or the demo as a whole, depending on the approach taken when writing it. As far as I know, DOS games only tend to access the hard drive when loading a level, and nothing after that until the end of the level.
Besides, with all the sound, video, and other programming tricks used by the authors of demos, you're probably more-likely to weed out bugs and missing features in those areas using demos than if you use games. Remember, demo authors tried to make every last CPU cycle count for something and pull off as many interesting tricks as possible with the available hardware, including the sound and video.
I've got one demo that doesn't work under DOSBox because it needs VGA hardware functions that DOSBox doesn't have yet. Shall I post a zip of it?