Audio is recorded and stored in various ways. This includes CDs, tapes, discs and records. These are available for sale in Americus. A CD is the most commonly used audio record now, and it is an optical disc used to store digital data. It is called a compact disc. Tapes were earlier popular, and used magnetic tape sound recording, but they became obsolete due to limited storage space and emergence of newer technologies such as CDs. Nowdays, MP3 discs are also popular, which uses the principle of a form of lossy data compression (which enables storage of far more amounts of data). Audio can be of various kinds. They can be bought from retail stores such as music shops and bookshops. Audio data includes music, songs, lectures, audiobooks, etc. They are usually sorted in stores as per genre, and often, combined deals may be available for more than one record.