Glossary - Philips DVP3356 User Manual

11 Glossary

A
Aspect ratio
Aspect ratio refers to the length to height ratio
of TV screens. The ratio of a standard TV is 4:3,
while the ratio of a high-deÀ nition or wide TV is
16:9. The letter box allows you to enjoy a
picture with a wider perspective on a standard
4:3 screen.
D
DivX®
The DivX code is a patent-pending, MPEG-4
based video compression technology,
developed by DivX Networks, Inc., that can
shrink digital video to sizes small enough to be
transported over the internet, while maintaining
high visual quality.
J
JPEG
A very common digital still picture format. A
still-picture data compression system proposed
by the Joint Photographic Expert Group, which
features small decrease in image quality in spite
of its high compression ratio. Files are
recognised by their À le extension 'JPG or JPEG'.
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M
MP3
A À le format with a sound data compression
system. 'MP3' is the abbreviation of Motion
Picture Experts Group 1 (or MPEG-1) Audio
Layer3. By using the MP3 format, one CD-R or
CD-RW can contain about 10 times more data
than a regular CD. Files are recognized by their
À le extension '.MP3'.
P
PBC
Playback Control. A system of navigating a
Video CD/Super VCD through on-screen
menus recorded onto the disc. You can enjoy
interactive play and searching.
Progressive Scan
The progressive scan displays twice the number
of frames per second than ordinary TV system.
It offers higher picture resolution and quality.
W
WMA
Windows Media™ Audio. Refers to an audio
compression technology developed by
Microsoft Corporation. WMA data can be
encoded by using Windows Media Player
version 9 or Windows Media Player for
Windows XP. Files are recognized by their À le
extension 'WMA'.