With the addition of Opeth's My Arms, Your Hearse from 1998, the first three Opeth albums are now available on the Candlelight Records Bandcamp. Here is one of the five reviews the albums has on Sputnikmusic.
The version of My Arms, Your Hearse available on Bandcamp is the 2000 re-release featuring two bonus tracks, covers of songs by Celtic Frost and Iron Maiden.