4.2

mode. It provides good quality, especially at bit rates
between 5 and 9 Mbps.
Single Pass VBR: This mode aims to maintain constant
quality (at the expense of constant bit rate) for the
transcoded video file. For most standard-definition (SD)
media files at bit rates of 3.5 Mbps and above, this mode
provides good to excellent quality and transcodes quickly.
Single Pass VBR (Best): This mode provides the best
possible quality output for SD video at bit rates of 3 to 3.5
Mbps and above.
Two Pass VBR: This mode uses two passes—one pass to
analyze the entire source video stream, and a second
pass to compress the file. This mode takes longer and
provides a better-quality file than the one-pass modes,
and is recommended for source media files with a
substantial difference between the most and the least
complex scenes.
Two Pass VBR (Best): This mode provides the best
possible quality output, and outstanding quality at bit rates
of 3 to 3.5 Mbps and above for HD and SD video.
Motion estimation: This pop-up menu sets the amount of
motion processing that will be performed on the file. There are
three options:
Good: The fastest processing setting. Use this setting
when there is relatively low motion between frames. In
general, use Good with the one-pass encoding modes.
Better: Provides very good results even in the presence of
complex interlaced motion. In general, use Better with
Single Pass VBR (Best) and Two Pass VBR (Best).