What is ProRes in Final Cut Pro X?
Apple ProRes codecs provide an unparalleled combination of multistream,
real-time editing performance, impressive image quality, and reduced storage
rates. ProRes codecs take full advantage of multicore processing and feature
fast, reduced-resolution decoding modes.
All ProRes codecs support any frame
size (including SD, HD, 2K, 4K, 5K, and larger) at full resolution. – read more
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