AAF to MPEG-2 Converter

AAF (Advanced Authoring Format) is a professional multimedia interchange format designed to facilitate the exchange of production data between content creation tools. Originally developed by a consortium including Microsoft, Avid Technology, and Adobe Systems, the format is now maintained by the Advanced Media Workflow Association (AMWA). First released in 1998, AAF provides a rich metadata framework that preserves not just audio and video essence data but also editorial decisions, effects parameters, transitions, and timeline structures. This makes it particularly valuable in post-production workflows where projects move between different editing systems and need to retain complex composition information that simpler formats would discard. AAF supports both embedded and referenced media, giving editors the flexibility to bundle everything into a single file or keep media external with linked references. The format handles multiple video and audio tracks with full timecode support, making it a reliable vehicle for broadcast and film projects. A structured approach to metadata preservation means that transitions, keyframes, and clip relationships survive the round-trip between applications, reducing rework and manual reconstruction when collaborating across different production platforms.

MPEG-2 is a widely deployed video and audio compression standard developed by the Moving Picture Experts Group and approved in 1995 as ISO/IEC 13818. Building on the foundations of MPEG-1, MPEG-2 was designed to handle higher bit rates and resolutions, particularly interlaced video for broadcast television, making it suitable for applications ranging from standard-definition TV to high-definition content. The standard introduces the concept of profiles and levels, allowing implementations to target specific capability tiers — from the Simple Profile for basic applications to the High Profile supporting 4:2:2 chroma for professional broadcast. MPEG-2 became the compression backbone of digital television worldwide, adopted by DVB, ATSC, and ISDB standards, and it serves as the video codec for DVD-Video, bringing movie-quality video to the consumer market. The transport stream layer provides robust multiplexing with error resilience features essential for broadcast delivery over noisy channels, while the program stream variant serves storage-oriented applications like DVDs. MPEG-2 supports resolutions up to 1920x1152 in the Main Profile at High Level, with bit rates reaching 80 Mbps in professional configurations. Although newer codecs like H.264 and HEVC offer substantially better compression efficiency, MPEG-2 remains entrenched in broadcast infrastructure, cable and satellite systems, and billions of DVD discs in circulation worldwide.