Roxio DVDit Pro HD, User Manual, Page: 211 / 222

Glossary
211
write speed
The maximum amount of data that a DVD or CD recorder can successfully transfer
per second. Usually expressed as a multiplier — 1x, 2x, 4x, 48x, and so on. Generally,
a larger number means a faster drive.
CD and DVD discs also have speed ratings. These ratings usually appear as a range of
recorder speeds the disc can support. If you put a fast disc in a slow recorder, your
recording may fail. To prevent failures, make sure that the disc speed and format are
compatible with your recorder.
YUV
The color model used in analog or digital video. This model was developed to enable
both black-and-white and color TVs to use the same video signal. The video signal is
made up of a brightness (Y) component and two color (U and V) components. The Y
component is the black-and-white signal. The U component contains the difference
between blue and the Y component (blue – Y), whereas the V component contains the
difference between red and the Y component (red – Y). This color model is also often
abbreviated as YCbCr.
DVDit_Pro_HD.book Page 211 Monday, September 25, 2006 2:32 PM