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As you have probably seen as you go out looking for Home Theater equipment it is difficult to come to grips with all of the sound types that you can get a DVD to output to your stereo. Here is a great article from Roger Kanno at Home Theater Sound that lets you in on more than just the basics

Almost Everything You Need to Know about Surround-Sound Formats for Home Theater

It’s no wonder that people become confused by the myriad of audio formats that are available today. We are bombarded by such names and acronyms as Dolby Pro Logic, Dolby Digital, DTS, THX, PCM, SACD, DVD-A, MP3, Dolby Digital EX, DTS-ES, Pro Logic II, and these are just the most common ones.

Although there are even more audio formats than those I have just mentioned, when it comes to surround-sound formats for home theater, there are really only three major ones. I will discuss the others later just to avoid confusion, but the three that we must concern ourselves with, and that I will discuss in detail are Dolby Digital, Dolby surround and DTS.

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