Do not look for this on standard search engines. Focus on private trackers dedicated to art-house films, or archive.org communities focusing on "lost media." Ensure your antivirus is active, and always verify the hash.
Consequently, the "20 upd" version is a community-maintained digital preservation project. It is not a commercial product available on Amazon or iTunes. For academic or private study purposes, collectors argue that the "upd" version is essential because the original DVD-R pressing of Vol13 is now susceptible to disc rot (a chemical degradation of the polycarbonate layer). roy stuart glimpse vol13 20 upd
In digital archiving nomenclature (often used in Scene releases or P2P groups), "upd" stands for Do not look for this on standard search engines
However, for digital archivists and fans of the genre, one specific string of text has been causing a significant ripple in niche forums and torrent trackers: . It is not a commercial product available on Amazon or iTunes