What is the difference between a consumer and a professional CD-i player?
Philips sold various professional CD-i players next to the standard consumer models. Both types of players comply fully to the CD-i standard as defined in the Green Book and were based on the same CPU and audio and video ICs, but the professional players usually offered some extra features. There were professional players with an integrated floppy disk drive, with a parallel port to connect a printer or ZIP-drive, with SCSI-ports, with ethernet network connections or with up to 5 MB of extra RAM. Some players had a feature that enabled the users to customize the startup screen of the player shell. Several professional players were especially made for CD-i development studios, since they included input ports to connect an emulator (see CD-i authoring) to simulate the playback of a CD-i disc from an external harddisk for testing purposes. Refer to the Complete CD-i players overview at this site for more information about the differences between the various players. 4.4 Does system perfor
