Files in AUD format can be accessed with NICE Systems NICE Media Player or Winamp Aud Plugin in Microsoft Windows based systems. This AUD file extension is a data format which is utilized for AUD compressed audio files or sound clips. It was created by Westwood Studios and is used in computer games like Command & Conquer, Red Alert, and Sierra's Laura Bow 2: The Dagger of Amon Ra. They are employed to represent audio files made by Westwood Studios like sound effects and musical score. Such files are usually stored in a condensed format and are most often applied in computer games. They utilized two compression ways such as the IMA-ADPCM compression and 8-bit audio files compression. The first compression involves in compressing a 16-bit piece of information to 4 bits about 75% compression rates. They occupy very little data space and still offer quality realistic sound. They can be converted to MP3, WAV and other audio format.