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File Interchange Handbook by Brad Gilmer

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2.1INTRODUCTION TO METADATA

In the early days of digital media, little thought was given to metadata. Recording, mixing, editing, and display systems typically worked with a single media format. The challenges of coaxing sufficient performance from the hardware to process the pixels were such that the idea of building agile decoders seemed ludicrous. Equipment was designed to be single-purpose, and most essence parameters were burned into hardware. In this context, it is little wonder that metadata was limited to controlling the few switches that existed—such as selecting 625 lines or 525 lines, or choosing one of ten possible wipe patterns. Further, ...

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