The original 1973 LP, when released on CD, was released on two discs, while the 1992 and 1995 CD remasters put the album on one disc as it was slightly less than 80 minutes. The 30th anniversary edition followed the original format, splitting the album across two discs to allow the inclusion of the bonus tracks, while a DVD on the making of the album was also included. The album has also been released by Mobile Fidelity as a single disc 24 karat gold CD. The album (including all four bonus tracks) was released on SACD (2003), DVD-Audio (2004), and Blu-ray Audio (2014). These high resolution releases included the original stereo mixes, as well as 5.1 remixes produced and engineered by Greg Penny.