Samsung SC-D362 Service Manual page 238

Reference Information
14-3-7 Memory Stick Duo/RS-MMC-downsizing of the existing cards.
Memory stick Duo is half the size of memory stick. It is used on NTT Tokomo's 02511 camera phone, and it
records the shot image. However, there is a limitation on the number of chips since it was downsized by half.
Only 16MB capacity models are being sold. To use Memory Stick Duo as a conventional memory stick, the
dedicated conversion adapter should be used together.
For MMC, which was already small, there is also the RS-MMC (Reduced Size-Multi Media Card) that is half the
size of MMC. Developed by Hitachi, the purpose was for using them on mobile phones in Europe. There is,
however, no existing application so far. Its shape is exactly half the size of MMC. The length is a little longer
than half of MMC. (The length of MMC is 32mm. The length of RS-MMC is 18mm). It can be used as a
conventional MMC when the dedicated adapter is attached to the rear part.
14-38 Samsung Electronics