Adobe ENCORE 2 Manual page 36

ADOBE ENCORE DVD 2.0 31
User Guide
A B
The Project Transcode Settings dialog box displays the Source or Ouput image (A) and the preset settings (B).
See also
"About transcoding" on page 28
Preset options for video
Depending on the preset you've selected, the Video tab of the Project Transcode Presets dialog box contains some or
all of the following options:
Specifies the encoding quality. Quality values range from 1 to 5, with higher values increasing quality and
Quality
render time.
Specifies the output field order, Upper or Lower. Only appears if you select Interlaced as the Program
Field Order
Sequence option.
Specifies the compression technique used. Constant Bit Rate (CBR) compresses data to a fixed rate.
Bitrate Encoding
CBR keeps the rate constant by varying the amount of compression (and thereby quality) as required by the specified
data rate. Variable Bit Rate (VBR) compresses data to fit between a fixed minimum and fixed maximum rate. VBR
allows the compression to vary, which can result in better quality than CBR.