What are the most common types of Disk Images?
The 5 most common types of disk images you might come across are (identified by their filename extensions): ATR: Nick Kennedy’s SIO2PC Atari Disk Image format. This is the defaco standard disk image, used by APE, SIO2PC, and all Atari emulators. There are minor differences in the header use between these programs, but the images remain compatible regardless of what program they are created with. XFD: Xformer Disk Image. This image is similar to the ATR but lacks the ID and format header, it is essentially a large unmarked blob of data. Compatible only with the PC-Xformer emulator. DCM: Compressed Disk Communicator image. This is actually a native Atari file format which contains an entire Atari disk compressed with Bob Puff’s Disk Communicator program. Must be decompressed to an ATR before use. SCP: Spartados Compressed Disk Image. This is also a native Atari file format, an image of a complete disk compressed with the Spartados utility SCOPY. Must be decompressed into an ATR before us
