Is there any cool demos or anything that uses 4.1/5.1 sound that i can test my speakers with?

[chiwawa626]

Is there any cool demos or anything that uses 4.1/5.1 sound that i can test my speakers with? Like any games or downloadable demos that have surround sound that i could test my z560s with .... ywah yah ..ill go rent a dvd soon, but even that , which dvd would be a cool one to use with z560s ?