Developers also complained that it was difficult to develop for the system, with little in the way of reference material from Sony for its exotic architecture.
When the PlayStation 2 launched in Japan in March 2000, Sony sold 980,000 units over the opening weekend.
There is also now a V14 model (SCPH-75001) which contains an integrated EE and GS (disputed - see talk page) , and different ASICs compared to previous revisions, some chips having a copyright date of 2005 compared to 2000,2001 for earlier models.
After an apparent manufacturing issue caused some initial slowdown in producing the new unit, Sony reportedly underestimated demand, caused in part by shortages between the time the old units were cleared out and the new units were ready.
However the New Slim Silver Models have more issues with playing PlayStation games than the first PS2 revisions.
The PlayStation 2 had a difficult start.
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.
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