A codec (coder-decoder) compresses and decompresses digital video, and choosing the right one is essential for both editing and delivery. Intraframe codecs such as ProRes and DNxHR compress each frame independently, making them ideal for editing because they allow precise frame-level access and real-time playback. Interframe codecs such as H.264 compress across frames, producing much smaller files but requiring more CPU power to decode during editing. H.264 (AVC) is the most widely supported codec for delivery to platforms like YouTube and social media, while H.265 (HEVC) is roughly twice as efficient, delivering similar quality at half the bitrate but with narrower playback support and heavier processing demands.
Container formats wrap audio, video, and metadata into a single file. MP4 is widely supported and optimized for web streaming, while MOV (QuickTime) is Apple's container often paired with ProRes in professional workflows. MXF (Material Exchange Format) is a robust container used in professional broadcast environments, often wrapping codecs like DNxHD or ProRes and preserving rich metadata, timecode, and multiple audio tracks. Within MXF, OP-1a bundles essence into a single file per clip, while OP-Atom keeps each essence stream in separate files for frame-level access.
Export settings determine the final deliverable's quality, compatibility, and file size. Match Source automatically aligns the export codec, resolution, frame rate, and audio settings to the sequence, providing a quick high-quality render. VBR (Variable Bit Rate) allocates more bits to complex scenes and fewer to simple ones, optimizing quality and file size, while CBR (Constant Bit Rate) maintains the same bitrate throughout and is preferred for live streaming. For YouTube, the recommended approach is H.264 in an MP4 container at 8-12 Mbps for 1080p or 35-45 Mbps for 4K, in Rec. 709 color space. The Maximum Bit Depth and Maximum Render Quality options produce smoother gradients and cleaner scaling at the cost of longer render times. Project Manager collects and copies only the media used in selected sequences to a new location, creating a portable, self-contained project for archive or handoff.