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While availability of dedicated SmartMedia readers has dropped off, readers that read multiple card types (such as 4-in-1, 10-in-1) continued production, but even these have decreased in quantity over time, with many dropping SmartMedia in favour of microSD and/or Memory Stick Micro. As of August 2024 only legacy card readers remain in production.
A flash drive (also thumb drive, memory stick, and pen drive/pendrive) [1] [note 1] is a data storage device that includes flash memory with an integrated USB interface. A typical USB drive is removable, rewritable, and smaller than an optical disc, and usually weighs less than 30 g (1 oz).
The Memory Stick PRO Duo (MSPD) quickly replaced the Memory Stick Duo due to the Duo's size limitation of 128 MB and slow transfer speed. Memory Stick PRO Duos are available in all the same variants as the larger Memory Stick PRO, with and without High Speed mode, and with and without MagicGate support.
MagicGate logo Memory Stick Pro and Memory Stick Pro Duo supporting MagicGate PlayStation 2 memory card supporting MagicGate. MagicGate (MG) is a copy-protection technology introduced by Sony in 1999 as part of the Secure Digital Music Initiative (SDMI).
The number of compatible memory cards varies from reader to reader and can include more than 20 different types. The number of different memory cards that a multi card reader can accept is expressed as x-in-1, with x being a figure of merit indicating the number of memory cards accepted, such as 35-in-1. There are three categories of card ...
Prepare the card to receive a block to write to the flash memory, or read and reply with the contents of a specified block. The command interface is an extension of the MultiMediaCard (MMC) interface. SD cards dropped support for some of the commands in the MMC protocol, but added commands related to copy protection.
A write-locked SD card (known as a Live SD, the solid-state counterpart to a live CD) in a USB flash card reader adapter is an effective way to avoid any duty cycles on the flash medium from writes and circumvent this problem.
All Eee PC models also include a memory card reader, supporting SD, SDHC and MMC cards for additional storage, while the Eee PC S101 also has support for Memorystick and MS-PRO. [ 28 ] Eee PC 1004DN is the first model with a Super-Multi optical disc drive (ODD) that reads and writes data to DVD or compact disc.