High-quality audio file created using the (AIFF) file format; contains CD-quality audio stored in a non-compressed, lossless format, similar .WAV files; commonly used to burn audio CDs.

The AIFF file format is based on the Electronic Arts .IFF format and was originally developed by Apple Computer. Standard CD audio AIFF files are sampled at 44.1KHz, are 16-bit, and have two channels for stereo sound.

AIFF files are more commonly seen as .AIF on Windows systems.