User Guide

8 Preface About High Definition and Broadcast Formats
Overview of High Definition Video Formats
Because of the multiple frame sizes, frame rates, and scanning methods supported by
the latest high definition video specifications, there are a large number of high
definition formats currently available. While the most commonly used formats are
described below, many other variations exist today.
1080i60
This is a common broadcast format that is compatible with standard definition
NTSC video.
Pros
 Individual still frames in this format are very high quality because of the high resolution.
 29.97 fps frame rate and interlacing are both compatible with standard definition
NTSC video.
Cons
 Quick action or rapid camera motion may cause interlacing artifacts.
1080i50
1080i50 is compatible with standard definition PAL video.
Pros
 Individual still frames in this format are very high quality because of the high
resolution.
 25 fps frame rate and interlacing are both compatible with standard definition
PAL video.
Cons
 Quick action or rapid camera motion may cause interlacing artifacts.
 Because of the lower frame rate, this format can cause more severe motion artifacts
than 1080i60.