WAV files are popular because they are considered a “first generation” format. That is, they are generally kept as the first digital copy of a file completely uncompressed.

AIFF format results in an uncompressed PCM (pulse-code modulation) file meaning it still has relatively large file sizes, but maintains a higher quality of sound.

1: WAV and AIFF are both lossless formats.
2: both have the same exact digital audio information.
3: As pointed out earlier, the technical advantage to AIFF is its nativity to iTunes.
4: AIFF files offer a lot of flexibility in editing, copying, changing file formats, and other post-production activities.
5: They are the Apple/Macintosh equivalent of WAV files, though both Windows PCs and Apple Macs will recognize either format.

Other Comparison: MP4 vs FLV / MKV vs MP4 / MP4 vs MP3 / 3GP vs MOV / 3GP vs FLV / M2TS vs MP4 / MP4 vs 3GP / SWF vs 3GP

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