This is the Japanese edition released by Bomba Records and only available in Japan. There are two bonus tracks, "Lydsjekk5" and "Lydsjekk6alt2".
It comes in a so called replica mini lp cd gatefold sleeve with hard cardboard. Great stuff and we like these very much. It also comes with an obi strip at the front as well as a 4 page booklet in Japanese. The original artwork has been slightly modified to fit the different format. These editions are often made in limited numbers and are known to become quite expensive on the collectors market.