Multiface

The snapshot feature could be used after copy protection routines had been executed, to create a backup that was effectively unprotected against unauthorised distribution.

[3] Software producers also reacted to the threat by using routines that would prevent execution of the product if it detected that a Multiface was present and by loading the software in multiple parts, thus requiring the presence of the original, copy-protected media.

Multifaces were released for 8-bit and 16-bit microcomputers, such as the ZX Spectrum, Amstrad CPC & Atari ST.

[5] It featured a Kempston joystick port, and later revisions contained a switch that effectively 'hid' the device from software.

Control of the visibility of the device was at a software level rather than the hardware switch found on the Multiface One.

It worked in 128K or 48K mode and it existed in two versions; initially without a 'thru-port' and later, with one, both of which originally cost the same £44.95,[5] (equivalent to £160 in 2023) but were later reduced to the same price as the Multiface One.

Anti-Multiface was a public domain program for the Amstrad CPC which allowed the restoring of saved memory dumps without the need for a Multiface to be present.

Competing devices included the Mirage Imager, Disk Wizard, and Action Replay.