Convert 4mi to dds Online: 4mi2dds

You can use Tom's Editor to easily convert images from
Atari 4MI .4MI to Direct Show Surface .DDS.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

4MI

Atari 4MI is an image format with extension 4MI.

DDS

DDS are files invented by Microsoft to be used in games, mostly as textures. Images can be compressed to save space but the compression methods defined by DDS are all very fast in terms of coding and decoding.