It was originally released exclusively on cassette tape in April 1994 with just six tracks.
It was re-released in 1998 on CD with four additional tracks from out-of-print 7-inch records and other unreleased songs.
As such, they amended the album title to Stereo "360 Sound" + seven inches & unreleased for the 1998 release.
The term "Stereo 360 Sound" was originally used in the labelling of "LP" records released by Columbia Records in the early thru mid 1960s...As mono and stereo LPs were released during this time, the "Stereo 360 Sound" logo was situated in a rectangular box with two arrows pointing in opposite directions which appeared on the top of the LP cover (only on stereo releases) adjacent to the "walking eye" logo.
This practice ended roughly in 1968 when compatible stereo albums were released, thus mono LPs were phased out of production.