The Woodstock soundtrack triple album was originally released by Cotillion, an Atlantic Records label.
Titled Woodstock: Music from the Original Soundtrack and More, the album appeared on May 11, 1970, less than a year after the festival. It was a three-LP collection of selected performances from the August 1969 event and was compiled and produced by Eric Blackstead. Cotillion’s connection to Atlantic explains why Atlantic is sometimes cited in later discographies.
The album captured only part of the festival. It included performances by artists such as Jimi Hendrix, Santana, Jefferson Airplane, The Who, Joan Baez, and Sly and the Family Stone, along with stage announcements and crowd sounds. Some recordings were edited, overdubbed, or otherwise altered for release.
The original triple-LP format is another frequent source of confusion. Later editions appeared as CDs, box sets, and Atlantic reissues, but those subsequent formats and labels do not change the original U.S. release credit: Cotillion.