No. MMC is too large to fit in a mini-SD slot. It will work, however, in a standard SD slot.
Mostly SD cards or MMC cards.
yes you can use it. Camera is compatible with SD/SDHC, MMC/MMC Plus/HC MMC Plus cards so any of these cards will be ok.
Flash drive
The C300 has a PCMCIA PC Card slot. You can purchase a PCMCIA PC Card Adapter that is compatible with SD, MS, MMC, & SM Cards.
The C743 works with MMC and SD cards, not with SDHC card
A multicard reader is a device that connects to your computer, or is built into your computer, that allows you to read different types of memory cards. The variety varies, but usually they include Secure Digital (SD), Compact Flash (CF), Memory Stick Duo I & II, plus CF-Type I, CF-Type II, CF-Ultra II, Micro Drive, SD, SD-Ultra, SDC, Mini SD, MMC, HS-MMC, RS-MMC, MS, MS(MG), MS-Pro, HS-MS-Pro, MS-Duo, MS-Pro Duo, HS-MS-Pro Duo, SM, X Card, and T-Flash.
If you mean as a Roman numeral then it is equivalent to 2100
An SD/MMC-MS/pro card is a type of flash memory card for storing images. It can often be found in cameras.
SD and MMC cards both work. See the related link for the full specs.
It is: MMC = 2100
MMC is short for 'multimedia cards.' There is an industry standard to ensure compatability with MMC cards