and Match Day II. The last full price, commercial game to be released for the Spectrum was Alternative Software's Dalek Attack, which was released in July 1993. A homebrew community continues into the present day, with several games being released commercially from new software houses such as Cronosoft. Distribution Most Spectrum software was originally distributed on audio cassette tapes. The Spectrum was intended to work with a normal domestic cassette recorder. Although the ZX Microdrive was initially greeted with good reviews, it never took off as a distribution method due to worries about the quality of the cartridges and piracy. Hence the main use became to complement tape releases, usually utilities and niche products like the Tasword word processing software and Trans Express, (a tape to microdrive copying utility). No games are known to be exclusively released on Microdrive. Although the Interface 2 proved popular, the high cost of ROM cartridges, and the fact that they were limited to 16K in size, meant that very few titles were released in this format. Software was distributed through print media; magazines and books. The reader would type the BASIC program listing into the computer by hand, run it, and could save it to tape for later use. Software distributed in this way was in general simpler and slower than its assembly language counterparts. Magazines printed long lists of checksummed hexadecimal digits with machine code games or tools. Another software distribution method was to broadcast the audio stream from the cassette on another medium and have users record it onto an audio cassette themselves. In radio or television shows in many European countries, the host would describe a program, instruct the audience to connect a cassette tape recorder to the radio or TV and then broadcast the program over the airwaves in audio format. Some magazines distributed 7" 33 rpm flexidisc records, a variant of regular vinyl records which could be played on a standard record player. These disks were known under various trademarked names including "Floppy ROM", "Flexisoft", and "Discoflex". Copying and backup Many copiers—utilities to copy programs from audio tape to another tape, microdrive tapes, and later on diskettes—were available for the Spectrum. As a response to this, publishers introduced copy protection measures to their software, including different loading schemes. Other methods for copy prevention were also used including asking for a particular word from the documentation included with the game—often