The 1984 and 1997 albums were regular U.S. releases. The German and
other European imports that were released in between those two regular releases
have the same contents as the 1984 P.E.G. release. The 1997 album has fallen out
of print because P.E.G. went out of business.
The 2001 release was available only through online soundtrack specialty retailers,
but it is also now out of print.