V7 and V8 are also similar, and V9 (model number SCPH-50000/SCPH-50001) added the Infrared port for the optional DVD Remote Control, removed the widely unused FireWire port, added the capability to read DVD-RW discs, and a quieter fan.
The machine's future continues to be uncertain, with North American and European launches considered to be distant if at all.
Hardware sales remained strong until 2004 saw the console apparently approaching saturation point.
Another major selling point over the Dreamcast was the PlayStation 2's ability to play DVDs, which gained it a presence in electronics stores which did not formerly sell video game consoles.
Later, Sony gained steam with new development kits for game developers and more PlayStations for consumers.
Later hardware revisions had better compatibility with PlayStation games (Metal Gear Solid: VR Missons works on most silver models).
In September 2004 Sony unveiled the third major hardware revision (V12, model number SCPH-70000).
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