A standard movie trailer won't tell you if your rear-left speaker is actually playing the rear-left channel. A dedicated test video helps you: Verify Channel Routing:
To ensure your surround sound system is working correctly, you'll need a test video. Here's how to download and use a Dolby Digital 5.1 Surround Sound test video: dolby digital 51 surround sound test video download hot
: Features the popular "Dolby Train" demo, which uses low-frequency content and directional effects to test system depth. A standard movie trailer won't tell you if