ST disk image

ST is a format (or a family of formats?) used for raw floppy disk image files for Atari computers.

Software

 * Floppy Image v1.02 (Windows binary) can extract files from ST images, awkwardly (no need to install the driver): "Open image file", "File transfer", select a "Dest Dir", select file(s), "Extract".
 * Supported by some Atari emulators.

Sample files

 * http://www.page6.org/st_lib/st_lib.htm
 * http://atari.8bitchip.info/EMPTYFLO.ZIP

Editors' notes
Need more information about the relationship of ST format to IMA, and any other relevant formats.