.BO1 File Extension

Odyemu Overlay Image

Developer Paul Robson and David Winter
1.0  |  2 Votes

What is a BO1 file?

A BO1 file is a bitmap image used by an Odyemu video game (.MO1 file). It is an overlay used to skin the game. BO1 files are run-length encoded .BMP files.

More Information

Odyemu is a Magnavox Odyssey emulator available for MS-DOS. It allows users to play Odyssey games, such as Tennis, Volleyball, and Football, on their PCs.

Each Odyemu game is saved as an MO1 file. These files are text files that emulate the connections made between a real Magnavox Odyssey and a real game cartridge. Some MO1 files reference a BO1 file, which contains an overlay image used to add colors to a game. For example, the game file TENNIS.MO1 references an image named TENNIS.BO1, which makes the game look like a green and yellow tennis court.

To create BO1 files, Odyemu users use a utility named BMPTORLE. This utility accepts BMP images that are 320 x 200 pixels in size and use 8-bit color.

How to open a BO1 file

BO1 files are not meant to be opened outside Odyemu. To run Odyemu in Windows, you must use the DosBox MS-DOS emulator.

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Programs that open or reference BO1 files


Verified by FileInfo.com

The FileInfo.com team has independently researched the Odyemu Overlay Image file format and Windows apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

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