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MBM is shortened from MultiBitMap ^[1] which, as the name suggests, is a container for a set of bitmap images. The contained bitmaps are not stored verbatim. Rather, each one is stored with a modified bitmap header with no data compression or with 8-, 12-, 16-, or 24-bit RLE compression.

MBM files are used by lots of Symbian GUI applications to store their graphical content. ^[1]

See also

• Symbian OS
• Symbian Ltd.
• Symbian installation source

References