Toshiba unveiled its new memory card, the Toshiba 4GB SDHC Memory Card which conforms to the SD memory card v2.00 standard introduced by the SD Card Association (SDA) and achieves top notch performance. According to the SD Speed Ratings these are the minimum class speeds - Class 2: 2MB/s; Class 4: 4MB/s; Class 6: 6MB/s. Toshiba is pretty thrilled since their new card exceeds the Class 4 minimum write speed of 4MB/s. However this comes at a price, the new 4GB SDHC card is not compatible with standard SD card slots/readers.