AIFF

Audio Interleaved File Format An audio container format first used in the Apple Macintosh operating system, containing uncompressed Red Book audio. A precursor to MP3 and AAC compression technologies. AIFF uses uncompressed pulse-code modulation (PCM) but a less-popular AIFF-C (compressed) would also work with a number of specificed audio codecs. AIFF files are similar to WAV files in both size and quality. Though AIFF files were originally created by Apple, audio programs on both the Mac and PC can usually read them.