Dolby Digital (AC3) is a lossy audio format supporting 5.1 surround sound, standard for DVD and Blu-ray home theater systems.
Core Audio Format (CAF) is Apple's audio container designed to overcome the file size and sample rate limitations of AIFF and WAV.
Reach for AC3 when your priority is home theater, dvd/blu-ray surround audio — its efficient compression makes sharing fast and storage minimal.
Reach for CAF when your priority is apple audio production, professional editing — its uncompromising quality ensures every detail is preserved.
Learn more about AC3 and CAF formats in our detailed guide.
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AC3 (Dolby AC3) - Dolby Digital, surround sound audio format. Best for home theater, dvd/blu-ray surround audio.
CAF (CAF audio) - Core Audio Format, Apple's professional audio format. Ideal for apple audio production, professional editing.
Yes, GoConvertFile offers free conversion of AC3 to CAF for files up to 100MB. No registration required.
Most AC3 to CAF conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.
CAF is ideal for apple audio production, professional editing. Core Audio Format, Apple's professional audio format
No, converting AC3 to CAF does not cause additional quality loss — CAF uses lossless compression. However, any artifacts already present in the original AC3 file will persist in the CAF output.
CAF files are typically 2-5x larger than equivalent AC3 files because CAF preserves all pixel data. This is expected and necessary for lossless quality.