Operation Manual

Glossary 141
Glossary
Analog
A signal that is not digital. Most VCRs, AV in/out, S-VIDEO, and stereos
are analog. Computers are digital, dealing in ones and zeros. Information
from an analog source must be digitized to be used on a computer.
Aspect Ratio
The relationship of width to height for a given image or graphic. Keeping
or maintaining the aspect ratio refers to the process of maintaining size
relationships when either the width or height of an image or graphic is
changed.
AVI
Audio-Video Interleave is a digital video file format designed specifically
for the Microsoft Windows environment.
AVCHD
Advanced Video Codec High Definition is a video format that is designed
for camcorder use. It uses a disc structure designed for Blu-ray Disc / high
definition compatibility and can be burned on standard DVDs.
BD
Blu-ray Disc is a new optical disc format that uses a blue-violet laser for
high definition video recording and playback. Each disc also allows more
information to be burned in 25-GB (single-layer) and 50-GB (dual-layer)
discs, offering more than five times the capacity of standard DVDs.
Capture
The recording of video or images to a computer hard disk.