CD-ROM normally expressed with binary prefixes, subtracting the space used for error correction data. A standard 120 mm, "700 MB" CD-ROM can actually hold about 737 MB (703 MiB) of data with error correction (or 847 MB total). In comparison, a single-layer DVD-ROM can hold 4.7 GB of error-protected data, more than 6 CD-ROMs. CD-ROM discs are read using CD-ROM drives. A CD-ROM drive may be connected to the computer via an IDE (ATA), SCSI, SATA, FireWire, or USB interface or a proprietary interface, such as the Panasonic CD interface, LMSI/Philips, Sony and Mitsumi standards. Virtually all modern CD-ROM drives can
Philips CD-i in August 1996. Although Philips had aggressively promoted CD-i, by August 1993 "Computer Gaming World" reported that "skepticism persists about its long-term prospects" compared to other platforms like IBM PC compatibles, Apple Macintosh, and Sega Genesis. The magazine stated in January 1994 that despite Philips' new emphasis on games "CD-i is still not the answer for hardcore gamers", but the console "may yet surprise us all in the future". It recommended the CD-i with video cartridge for those needing to buy a new console as "The price is right and there is more software to support it", but 3DO was