Kompernass KH 6500 What are PAL and NTSC?, 17.4 MP3, WMA, JPEG, DivX, Mpeg, What are files?

Dolby Digital (5.1)

Dolby Digital, also designated as AC3, is a digital sound format, by which up to six seperate audio channels can be transported. With most of the current DVDs, the sound is stored in the so called "Dolby Digital 5.1" format; the "5" in the title "5.1" stands for three front and two rear surround sound channels, the "1" for the bass sound chanel.

The structure of an MP3-CD can, for example, appear as follows, if the MP3 data is stored in files:

MP3-CD FOLDER MP3

DTS

DTS is the abbreviation for "Digital Theatre System" and refers to one of the most common surround sound formats for DVDs. As with Dolby Digital 5.1, DTS uses three front and two rear surround sound channels as well as a bass sound channel.

WMA

WMA ("Windows® Media Audio") is a data format developed by Microsoft® for audio data.

17.3 What are PAL and NTSC?

PAL

PAL is the abbreviation for "Phase Alternation Line". PAL is the mid and west Europe (Exception: France, see the heading "SECAM") customary and most wide spread colour television standard.

NTSC

NTSC is the abbreviation for "National Television System Committee". NTSC is a colour television standard that is primarily used in the USA and Japan.

JPEG

JPEG ("Joint Photographics Expert Group") denotes a wide spread graphic format, developed by the organization with the same name, with which image data of the colour and grey scales are compressed.

DivX

DivX is a coding format for videos and multimedia data, invented by the DivX Networks, Inc company.

MPEG

MPEG ("Moving Picture Experts Group") refers to a video compression format.

17.4MP3, WMA, JPEG, DivX and

MPEG

MP3

MP3 denotes a process and/or format developed by the Fraunhofer Institute for the compression of audio data. In the MP3 format compressed music pieces are only a fraction of their original size, which, for example, on CD-Rs/CD-RWs allows for storage of a considerably greater volume of music than on commercially available audio CDs, on which audio data is stored in the CDA format.

17.5 What are files?

As opposed to audio CDs the title on a CD-R/CD-RW with MP3-, WMA- or JPEG data can be stored in files, for example, in order to file titles from different genres.

- 34 -