The Corroseum forum (new design under construction)

I run itno this 10'' very often. I looked to internet (Metal Archives) for their discography and this EP don't mentioned anywhere.
I have their 2 full length and I thought that I am only missing the Insanity Addicts EP, but now I found this one too.
Does anyone knows if it's official release or bootleg?

I just bought a copy of it but I doubt it's a bootleg since it's on WEA too just like "The work of idle hands". But each time I saw a copy the seller always said "promotional copy" so it was prohably any appetizer or something. Even the record price guide labels it as "promo".

The 10" (with sticker "Promotional copy only - not for resale" on the back sleeve) finally arrived and it's getting even more mystical since the insert contains the following sentence:

"... to offer just a taste of future things in the form of this free limited edition 10" E.P. featuring ..."