The SD Association, headquartered in San Ramon, California, United States, started with about 30 companies and today consists of about 1,000 product manufacturers that make interoperable memory cards and devices. For this reason the D within the logo resembles an optical disc.Īt the 2000 Consumer Electronics Show (CES) trade show, the three companies announced the creation of the SD Association (SDA) to promote SD cards. The trademarked 'SD' logo was originally developed for the Super Density Disc, which was the unsuccessful Toshiba entry in the DVD format war. Developers predicted that DRM would induce wide use by music suppliers concerned about piracy. It was designed to compete with the Memory Stick, a DRM product that Sony had released the year before. The card was derived from the MultiMediaCard (MMC) and provided digital rights management based on the Secure Digital Music Initiative (SDMI) standard and for the time, a high memory density. In 1999, SanDisk, Panasonic (Matsushita), and Toshiba agreed to develop and market the Secure Digital (SD) Memory Card. History 1999–2005: Creation and introduction of smaller formats

The SDA uses several trademarked logos owned and licensed by SD-3C to enforce compliance with its specifications and assure users of compatibility. SDA today has approximately 1,000 member companies.

The companies also formed the SD Association (SDA), a non-profit organization, in January 2000 to promote and create SD Card standards. The three companies formed SD-3C, LLC, a company that licenses and enforces intellectual property rights associated with SD memory cards and SD host and ancillary products. The standard was introduced in August 1999 by joint efforts between SanDisk, Panasonic (Matsushita) and Toshiba as an improvement over MultiMediaCards (MMCs). Secure Digital, officially abbreviated as SD, is a proprietary non-volatile flash memory card format developed by the SD Association (SDA) for use in portable devices. Portable devices, such as digital cameras and mobile phones (including most smartphones)

Canon eos rebel driver windows 10