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File Type Metadata Discovery

Research and implementation

AudioMetadataDiscoverer (javadoc)
A static class that returns audio metadata available through AudioFileFormat and AudioFormat.
Based on research in the article, File Type Metadata Discovery, Part 1: Audio

ImageMetadataDiscoverer (javadoc)
A static class that returns image metadata available through ImageIO and Drew Noakes' Metadata Extractor.
Based on research in the article, File Type Metadata Discovery, Part 2: Images