Which format is commonly used for editing proxies during production?

Which format is commonly used for editing proxies during production?

• A. ProRes
• B. H.264
• C. JPEG 2000
• D. WAV

Answer: (A)

Proxies are lower-resolution copies used during editing to keep playback smooth and reduce hardware strain. The ProRes family includes a Proxy variant specifically designed for this workflow, offering fast decoding, efficient performance, and easy relinking to the full-resolution media when you conform the edit. This makes editing faster and more comfortable while still preserving timing, color, and metadata so the final render matches the original footage.

H.264 proxies exist, but their long-GOP structure can be harder to decode quickly in complex timelines, which can slow editing. JPEG 2000 is high-quality and popular for mastering and cinema delivery, but it’s heavier to decode and not as commonly optimized for proxy editing in many editing systems. WAV is audio-only, so it can’t serve as a video proxy.