Neo Geo CD
The front-loading version is the original console design, with the top-loading version having been developed shortly before the Neo Geo CD launch as a scaled-down, cheaper alternative model. The CDZ was released on December 29, 1995 as the Japanese market replacement for SNK's previous efforts (the "front loader" and the "top loader"). The Neo Geo CD had met with limited success due to it being plagued with slow loading times that could vary from 30 to 60 seconds between loads, depending on the game.