Professional or authoring players typically have other additional ROMs, usually located on some kind of (removable) extensionīoard. Some cartridge versions also contain some utility Little over half of this ROM is typically used, it varies somewhat ROM with CD-RTOS file managers and drivers to support the MPEG playbackįunctions.

Most CD-i Digital Video Cartridges (DVCs) contain 128KB of additional ROM is again filled with code and resources for the player shell. The core system software takes less then 200KB of this, the remainder of the Have 1MB of system ROM, although only a little over 835KB of that is used. Notable exceptions to this are the Sony IVO players which Niceties such as the CD+Graphics decoder “ cdgr ” or the Service Shell “sv ” have been omitted. On some of the later Philips players the system ROM is so full that Resources (e.g., images, fonts) for the player shell and usually some utility Typically takes less than half of the ROM, the rest is taken up by code and Player hardware, as well as system startup programs. Including the OS-9 kernel, CD‑RTOS file managers, drivers for the specific CD-i This system ROM contains the core system software The typical CD-i player contains 512KB of system ROM which contains the CD-RTOS operating system based on Microware PCI/ISA CD-i boards from I2m / Philips that have their system software loaded (ROM) chips inside the CD-i player the only known exceptions to this are the The CD-i system software is typically stored in read-only memory

This means that to perform theirĮmulation function they need copies of this software. Low-level emulation for the system software. Most currently existing CD-i emulators use so-called

Cd-i emulator link