29
Progressive scan
The progressive scan displays twice the
number of frames per second than in an
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 with Windows Media player version
9 or Windows Media player for Windows XP.
Files are recognized by their À le extension
‘.wma.’
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.
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 recognized by their À le extension
‘.jpg’ or ‘.jpeg.’
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
Layer 3. With the MP3 format, one CD-R or
CD-RW can contain about 10 times more
data than a regular CD.
P
PBC
Playback Control. A system where you
navigate through a Video CD/Super VCD with
on-screen menus that are recorded onto the
disc. You can enjoy interactive playback and
search.
Troubleshooting
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