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.

Most EPOC MBM images are 4- or 16-tone grayscale, though color images and other bit depths are possible. Images may be uncompressed, or RLE-compressed. Several RLE algorithms are defined, but only the "8 bit" RLE algorithm is common.

See also

• EPOC Sketch
• Psion PIC

Identification

Files begin with (hex) bytes 37 00 00 10 42 00 00 10 00 00 00 00 39 64 39 47.

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/

Links

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