Is this cassette rare given it's self-released?

Yes, as a Mortem self-released item from 1989, it is inherently rare, especially with only two copies currently listed for sale.

What is the genre of this 1989 release?

Mortem – Slow Death is classified under the Rock genre.

The Discogs floor value for this cassette is currently listed at $42.14.

Name: Mortem – Slow Death (Cassette)
Brand: Mortem

Rock

What Slow Death by Mortem is worth on the used market.

Mortem value — Discogs floor $42.14. Prices updated June 2026.

Label · Not On Label (Mortem Self-released)Format · CassetteGenre · Rock

Live on eBay now

JunkPal AI· resale insightanalyzing sold comps…

▍

Price data verified against · 1

Slow Death by Mortem (1989) on Cassette. The Discogs marketplace floor is $42.14 with 2 copies currently for sale.

Pressing, country, and condition (media + sleeve) move vinyl/CD values the most — first pressings and clean copies command a premium.

What this actually trades for — sold values by condition vs. what sellers are asking today

Condition	Value	Based on
Discogs floor	$42.14	eBay sold comps

Is this cassette rare given it's self-released?: Yes, as a Mortem self-released item from 1989, it is inherently rare, especially with only two copies currently listed for sale.
What is the genre of this 1989 release?: Mortem – Slow Death is classified under the Rock genre.
What is the current market indication for this item?: The Discogs floor value for this cassette is currently listed at $42.14.