DNAS used a set of codes in a protected area of the game DVD together with serial numbers from the console EEPROM for online authentication. Game backups or copies using regular DVD-R burners do not have this protected area, and thus games failed to authenticate to the servers. To circumvent this, programs were made available that patch the client portion of the game to report hardcoded values without attempting to access the protected area of the DVD. This made it possible to play online with game backups and illegal copies.
Some games have a double DNAS check to prevent these patches. These techniques were introduced by Electronic Arts in most of their later games.
Discontinuation
The DNAS service was terminated on 4 April 2016 for NTSC-U and PAL regions after the last official online game, Final Fantasy XI, was taken offline on 31 March 2016, but continued to support NTSC-J PS2 titles and the PlayStation Store on the PSP.[3] Unofficial private servers allowed game play on other PS2 games until 4 April.[4] Certain games continued to work beyond 4 April and are still operational thanks to certain workarounds.[5]
It is a single internal entity overseeing all wholly owned development studios within SIE. It is responsible for the creative and strategic direction of development and production of all computer entertainment software by all SIE–owned studios, all of which is typically produced exclusively for the PlayStation family of consoles.
With the launch of the PlayStation 5 in 2020, Worldwide Studios brands all releases be it internal or externally developed under the "PlayStation Studios" label.[3]
History
SCE Worldwide Studios (SCE Worldwide Studios) was established on September 14, 2005, with Phil Harrison being appointed as president.[4] On May 16, 2008, Shuhei Yoshida became president.[5] In April 2016, Sony's Sony Computer Entertainment (SCE) and Sony Network Entertainment International (SNEI) divisions merged, creating SIE Worldwide Studios.[5] Hermen Hulst succeeded Shuhei Yoshida as president of SIE Worldwide Studios on November 7, 2019, with Yoshida being delegated to lead Sony's indie development.[6]
Naughty Dog is home to the ICE Team, one of Sony's Worldwide Studios central technology groups. The term ICE originally stands for Initiative for a Common Engine which describes the original purpose of the group.[25] The ICE Team focuses on creating core graphics technologies for Sony's worldwide first party published titles, including low-level game engine components, graphics processing pipelines, supporting tools, and graphics profiling and debugging tools. The ICE Team also supports third party developers with a suite of engine components, and a graphics analysis, profiling, and debugging tool for the RSX. Both enable developers to get better performance out of PlayStation hardware.[26][27]
XDev
XDev Europe, established in 2000 and based in Liverpool, England,[7] collaborates with independent development studios across Europe and other PAL territories to publish content to PlayStation platforms all over the world. XDev has helped to create and publish, titles such as the LittleBigPlanet, Buzz!, MotorStorm and Invizimals series, Super Stardust HD, Heavenly Sword, Heavy Rain, Beyond, Tearaway and Resogun. Partners include independent developers such as Quantic Dream, Magenta Software, Climax Studios, Novarama, Supermassive Games and Sumo Digital, as well as SCE subsidiaries such as Media Molecule and Guerrilla Games. In addition to funding projects, XDev offer full production, project management and game design support. Titles are also supported with community management, online production and dedicated outsourcing management facilities. XDev work directly with Marketing and PR teams in all Sony territories to promote and publish games worldwide.[28][29]