V10 and V11 have minor changes.
The ability to play DVD movies allowed consumers to more easily justify the PS2's relatively high price tag (in October 2000, the MSRP was $300) as it removed the need to buy an external DVD player (indeed, it could be said that the success of the DVD format was partly due to the PS2's ability to play DVDs, as the format seemed to appeal more to consumers after the console's launch).
Sony has also made a PVR/DVD burning consumer device that plays PlayStation 2 games called the PSX.
As of V4 everything was unified into one board, except the power supply.
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.
This allowed the PS2 to tap the large install base established by the PlayStation.
Yet, the PS2 initially sold well solely on the basis of the strength of the PlayStation brand and its backwards compatibility, selling over 900,000 units in the first weekend in Japan.
A product named HD Connect can be soldered into the unit giving hard drive support though.
Although Sony placed little emphasis on online gaming during its first year, all that changed because of the launch of the online-capable Xbox.
Enlarge.
For some consumers this is in fact a limitation, especially for the fans of titles such as Final Fantasy XI, which requires the use of this peripheral, and prevents the use of the official PS2 Linux kit.
However the New Slim Silver Models have more issues with playing PlayStation games than the first PS2 revisions.
It also has a different lens and some compatibility issues documented by Sony for earlier PS2 games.
The PS2 launch seemed unimpressive and gaffe-prone, compared to the well-planned launch of the Sega Dreamcast, which was making a genuine attempt to woo developers and which had better launch titles.
This led to further shortages, and the issue was compounded in Britain when a Russian oil tanker became stuck in the Suez Canal, blocking a ship from China carrying PS2s bound for the UK.
When the PlayStation 2 launched in Japan in March 2000, Sony sold 980,000 units over the opening weekend.
