Glossary—Continued
Progressive scan video
All the lines that make up a video picture are updated in one pass (compared to interlace which takes two passes to update the whole picture).
Regions (DVD-Video only)
These associate discs and players with particular areas of the world. This unit will only play discs that have com- patible region codes. You can find the region code of your unit by looking on the rear panel. Some discs are compatible with more than one region (or all regions).
Sampling frequency
The rate at which sound is measured to be turned into digital audio data. The higher the rate, the better the sound quality, but the more digital information is gener- ated. Standard CD audio has a sampling frequency of 44.1kHz, which means 44,100 samples (measurements) per second. See also “Digital audio”.
WMA
WMA is short for Windows Media Audio and refers to an audio compression technology developed by Microsoft Corporation. WMA content can be encoded by using Windows Media® Player for Windows® XP, Windows Media® Player 9 Series, or Windows Media® Player 10 Series.
WMV
WMV is an acronym for Windows Media Video and refers to a video compression technology developed by Microsoft Corporation. Files are recognized by the file extension “.wmv”.
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