ATR

ATR is an Atari floppy disk image format associated with SIO2PC, a product that connects Atari and PC computers. It is supported by some Atari emulators.

Identification
Files begin with bytes.

Specifications

 * ATR File Format Description

Sample files

 * http://www.page6.org/pd_lib/pd_lib.php
 * http://www.mushca.com/f/atari/