.AC3 File Extension
Audio Codec 3 File
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What is an AC3 file?
Audio file saved in the AC-3 (Dolby Digital) audio format; can include up to six channels of audio (DD 5.1 surround sound with subwoofer output); uses lossy compression and often used as the format for DVDs, cinema theaters, and game consoles.
Programs that open or reference AC3 files