The resolution of DVD video is better than the C.D. It's sound quality is also better than the C.D. The sound quality of a Digital Video Disc is dependent upon the speakers of the Digital Video Disc player. To get a good sound you need to have a good Digital Video Disc player with good speakers. If the sound box is good it will definitely produce a good output.

DVD sound are mainly of two types.

Dolby Digital

Dolby digital sound is one of the newest entries in the arena of DVD sound. This specific sound type is of very good quality. DVDs containing Dolby digital format offer a very realistic sound. This format gives the audience the feeling that they are experiencing the incident directly, not through a Digital Video Disc. There is an option called surround sound. This very sound gives the listener a feeling that the sound is coming from every direction. Actually in a surround sound format, the sound comes from six different sides. These six sides are, near right, front right, center, near left, front left and the sound that comes from sub woofers. Subwoofers give a low bass sound. Dolby digital sound is also very popular for films. Many modern cinema halls use this format.

DTH (Digital Theatre Sound)

Digital theatre sound is a kind of sound that enables a theatre like sound. It is almost like Dolby Digital format, but the sound quality is a bit better. This format has two main types

DTS-S: this system offers four channels. All four of them are matrix encoded. These four channels are, right, left, center, surround. This system is very much like the standard 35mm optical Dolby stereo.

DTS-6: this system has six different channels where the sounds come from. These six channels are, right, left, right surround, left surround and subwoofers. This system is very much like 70mm six track magnetic sound.

DTS format is becoming very popular. This format is also used in cinemas. The price of this format is also quite reasonable.

If you want good sound quality in a DVD, you should have some idea about the discs. Always buy better quality discs. You should opt for well known brand names. The facility of buying brand names is that you will always get quality material since they want to maintain their reputation and status in the market. It is true that they can sometimes be a bit expensive. Nevertheless, if you want to get a good output it shouldn't hurt to pay a little more