graphics, and was soon ported to various game consoles in a general shift toward greater realism. Computer Gaming World reiterated in 1994, "we have to advise readers who want a machine that will play most of the games to purchase high-end MS-DOS machines". By 1993, PC floppy disk games had a sales volume equivalent to about one-quarter that of console game ROM cartridge sales. A hit PC game typically sold about 250,000 disks at the time, while a hit console game typically sold about cartridges. By spring 1994, an estimated 24 million US homes (27% of households) had a personal computer. 48% played games on their computer; 40% had the 486 CPU or higher; 35% had CD-ROM drives; and 20% had a sound card. Another survey found that an estimated 2.46 million multimedia computers had internal CD-ROM drives by the end of 1993, an increase of almost 2,000%. Computer Gaming World reported in April 1994 that some software publishers planned to only distribute on CD as of 1995. CD-ROM had much larger storage capacity than floppies, helped reduce software piracy, and was less expensive to produce. Chris Crawford warned that it was "a data-intensive technology, not a process-intensive one", tempting developers to emphasize the quantity of digital assets like art and music over the quality of gameplay; Computer Gaming World wrote in 1993 that "publishers may be losing their focus". While many companies used the additional storage to release poor-quality shovelware collections of older software, or "enhanced" versions of existing ones—often with what the magazine mocked as "amateur acting" in the added audio and video—new games such as Myst included many more assets for a richer game experience. Many companies sold "multimedia upgrade kits" that bundled CD drives, sound cards, and software during the mid-1990s, but device drivers for the new peripherals further depleted scarce RAM. By 1993, PC games required much more memory than other software, often consuming all of conventional memory, while device drivers could go into upper memory with DOS memory managers. Players found modifying CONFIG.SYS and AUTOEXEC.BAT files for memory management cumbersome and confusing, and each game needed a different configuration. (The game Les Manley in: Lost in L.A. satirizes this by depicting two beautiful women exhaust the hero in bed, by requesting that he again explain the difference between extended and expanded memory.) Computer Gaming World provided technical assistance to its writers to help install