It is backwards compatible with older PlayStation (PS1) games, allows for DVD Video playback, and will play PS2 games off of cheap CD-ROMs or higher-capacity DVD-ROMs.
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.
It also has a different lens and some compatibility issues documented by Sony for earlier PS2 games.
It was not until late 2001 that the Microsoft Xbox became the second console with (non-standard) USB and DVD support.
These included a PCMCIA slot instead of the Expansion Bay (DEV9) port of newer models.
The PlayStation 2 holds the record of fastest selling video game console ever, 100 million PlayStation 2 units were shipped in only five years and nine months, shattering the previous record of nine years and six months by the PlayStation.
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.
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