AIFF (Audio interchange file format) is a sampled-sound file standard maintained by Apple Computer Inc. You can find basic specifications for it in Inside Macintosh Volume VI, published by Addison-Wesley Publishing Co. For information beyond the basics, contact Apple directly.
AIFF-C is almost identical to the AIFF format, but contains additional compression information. You can find information about it in Inside Macintosh Volume VI, published by Addison-Wesley Publishing Co., or you can talk directly to Apple for detailed information.