Chany & AST System - Why Not Demo (UK,F) (19xx) (PD).dsk ROM Download for Amstrad CPC (CPC). Chany & AST System - Why Not Demo (UK,F) (19xx) (PD).dsk game is available to play online and download only on Late Games. Chany & AST System - Why Not Demo (UK,F) (19xx) (PD).dsk ROM for Amstrad CPC download requires an emulator to play the game offline. This Game is English (USA) Version and is the highest quality available.