An album is a collection of audio recordings issued on a medium such as compact disc, vinyl, or audio tape, or in digital format.
Albums c. 2000 came on compact discs stored in jewel cases (pictured is Hey Petrunko by Ooberman).
Early record albums from the first half of the 20th century resembled photo albums, being packaged in book form on multiple 78 rpm records.
A vinyl LP on a turntable
A typical 8-track tape player
The A-side and B-side are the two sides of vinyl records and cassettes, and the terms have often been printed on the labels of two-sided music recordings, which in purely technical terms of recording
A cassette tape
17929A Lucia di Lammermoor