The Xploder CD 9000 is a brilliant solution for cheating on a PlayStation with no parallel port. However, it?s very easy to see that it?s a modified version of the Blaze cheat cartridges. The cheat part is great. The ?VMS? feature is carried over from some of the cartridge based units. This feature is a ?virtual memory system.? Basically, there was some memory in the cartridge which could be used to store copies of your most important memory card data. You couldn?t load a game directly from the VMS, but you could use it as a ?vault? to keep a backup of important game saves. This feature is reproduced on the CD 9000, but requires a 1 MB memory card. Now, I admit that since the VMS uses a compression routine, it is nice to be able to backup (up to) 120 saved games on a single memory card, it feels a bit strange to have to copy a saved game from your ?X-key? formatted memory card to a normal memory card through the CD 9000?s menu before you can actually USE the saved game.