EPOC MBM

File Format
Name	EPOC MBM
Ontology	Electronic File Formats Graphics EPOC MBM
Extension(s)	.mbm
Released	1997

EPOC MBM (also known as MBM, Psion Series 5 bitmap, or Symbian Multibitmap) is a raster image file format associated with Psion's EPOC operating system, and its successor, Symbian (most notably used by Nokia phones). An MBM file can contain multiple images.

Images may be grayscale, or palette color using a predefined palette. They may be uncompressed, or RLE-compressed.

See also

• EPOC Sketch
• Psion PIC

Identification

MBM files begin with (hex) bytes 37 00 00 10 42 00 00 10.

There is an "exported MBM" format, which begins with 37 00 00 10 8a 00 00 10. It seems to be similar or identical to MBM.

Specifications

• Format info from Psiconv
• Epoc32 File formats
• The MBM file format (from archive.org)

Software

• XnView
• Psiconv (requires ImageMagick library)

Sample files

• This Psion CD contains many MBM files, for example at .../GRAPHICS/DRA_0001/STEREOVU/
• http://www.pscience5.net/colouricons.htm - Many MBM files are in the ZIP files here (and in the ZIP files inside the ZIP files).
• ColoredS5mboles.zip → *.mbm ("exported MBM" format)

Links

• Wikipedia: MBM
• Wikipedia: EPOC
• Wikipedia: Symbian
• Creating EPOC MBM Picture Files