I think it may have been released as a CD in Japan looking at the picture provided with the entry on the HH CD listings area, although I have never come across it on CD.
It's a great album and it deserves a reissue but I have not heard any details of a forthcoming re-release on it.
BUT don't take just my word for it, some of the more clued up people on this site may be able to help a little more.