When you see the keyword suffix it refers to the digital file quality and track count:
Companies, etc. * Made By – Unknown (ZK) – ZK07029. * Manufactured By – Halahup. * Distributed By – Sony Music (2) Sinead O'Connor – MTV History 2000 - Discogs
Unlike her official studio albums like The Lion and the Cobra or I Do Not Want What I Haven't Got , the title belongs to a series of semi-official or "bootleg" compilations often produced by European labels like Halahup.
A lossless audio format that preserves every bit of the original CD data without the quality loss associated with MP3s.