There are several defined standard formats for storing sound information.
Many types of computers can store and play AIFF files.
AU is a sound file format used primarily by SUN computers. SND is a sound format used primarily by Macintosh computers. Mosaic is incapable of playing SND files. Mosaic for Windows can play WAV files with the appropriate external viewer, but other WWW browsers are incapable of playing WAV files at this time. Compression Sound files can also be recorded with or without compression.