User Guide

300 Appendix E, Digital Compression

Digital Video Components

This section documents the following digital video components:

• “Frame Rate” on page 300

• “Resolution” on page 300

• “Color Space” on page 301

• “Image Quality” on page 303

Frame Rate

Frame rate is the number of frames that display per second. There are different standards for

different regions of the world. North America and Japan use NTSC, which is 30 frames per

second (ﬁlm is 24 frames per second); Europe and some parts of Asia use PAL, which is 25

frames per second. When encoding video, you must specify whether the material is NTSC or

PAL so that the correct number of frames are processed.

Resolution

Screen resolution is the size of the picture. There are different standards for different regions

of the world. NTSC countries display video at 720 × 480 and PAL countries have a slightly

larger display with 720 × 576. It is important that you specify that correct resolution when

encoding video.