4.2

preservation of the highest-quality professional HD video that
a single-link HD-SDI signal can carry. This codec supports full-
width, 4:2:2 video sources at 10-bit pixel depths, while
remaining visually lossless through many generations of
decoding and reencoding. The target data rate of
Apple ProRes 422 HQ is approximately 220 Mbps at 1920 x
1080 and 29.97 fps.
Apple ProRes 422: A high-quality compressed codec offering
nearly all the benefits of Apple ProRes 422 HQ, but at 66
percent of the data rate for even better multistream, real-time
editing performance. The target data rate of
Apple ProRes 422 is approximately 147 Mbps at 1920 x 1080
and 29.97 fps.
Apple ProRes 422 LT: A more highly compressed codec than
Apple ProRes 422, with roughly 70 percent of the data rate
and 30 percent smaller file sizes. This codec is perfect for
environments where storage capacity and data rate are at a
premium. The target data rate of Apple ProRes 422 LT is
approximately 102 Mbps at 1920 x 1080 and 29.97 fps.
Apple ProRes 422 Proxy: An even more highly compressed
codec than Apple ProRes 422 LT, intended for use in offline
workflows that require low data rates but full-resolution video.
The target data rate of Apple ProRes 422 Proxy is
approximately 45 Mbps at 1920 x 1080 and 29.97 fps.
Note: Apple ProRes 4444 and Apple ProRes 4444 XQ are ideal
for the exchange of motion graphics media because they are
virtually lossless, and are the only Apple ProRes codecs that
support alpha channels.
AVCHD A high-definition (HD) video format that uses Advanced