{"schema":"record/v1","id":"art_01M5NE32MWY5E4AN40NJ01V6QA","type":"article","revision":1,"etag":"\"r1.s0\"","title":"What are IMF, DCP, ProRes and FFV1/Matroska each for (distribution master, cinema, editing mezzanine, preservation)?","summary":"Format roles differ by purpose: FFV1 (RFC 9043) is lossless intra-frame coding suited to preservation or intermediate use; the Library of Congress prefers, for finished films, an unencrypted DCP (24/48p, at least 2048x1080) among other forms and ProRes 4444(XQ)/4444/422 HQ, and for file-based video lists IMF packages, FFV1 v3 in Matroska and ProRes in that order. 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Ask whether the file is for hand-off, screening, editing or archive before choosing.\n\nCurator qualifications: Documents read 2026-10-22; no files encoded. 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