Try the newest Arduino 1.5.7 BETA, the SD library is improving and getting faster.With a small optimization you can achieve about 16kbyte per second (I'm not sure, but the number of '16' is in my memory). You do that by reading a buffer of 16 or 32 bytes at once from the SD card.Most EEPROMs are with I2C, that is slower. A SPI EEPROM is faster, like this one: http://arduino.cc/en/Tutorial/SPIEEPROM but I think it is still slow. The SD cards are made for high speed, an EEPROM is not.
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