>>2872551Don't do raw rendering. Use the UT Video Codec instead, it's lossless yet brings the size down to sane. YUV420 BT.709 is the standard choice and results in up to 17 GB (without letterboxing) for 3 minutes of a fully fleshed out crisp 1920x1080 60fps Ray-MMD video with noise and many moving parts, like picrel, but roughly <4 GB a minute on average. <3 GB for 4 minutes of a single-character test against a white background with no effects and relatively static camera. The filesize is directly proportional to pixel luminosity and change frequency, as well as the resolution.