How it Works.

Here is the process.

• The Playstation is turned on. The CPU in the Playstation is expecting to recieve a Bootcode from the game CD via the Laser section of the PlayStation.
• Since the Bootcode of a Playstation Game CD cannot be copied via publically available means, no such bootcode is present on a backup copy of a game CD. This means that the Playstation will not recognize the backup and will not boot properly.
• Imports contain a country code that the PSX check durring the boot sequence. If the country codes do not match, the boot sequence halts.
• The MODCHIP actually generates and sends the Bootcode directly to the Playstation CPU and effectively bypassing the bootcode to be generated from the Laser Section allowing the user to play CD-R backups and imports.

In short,

• the MODCHIP allows you to play CD-R backups
• the MODCHIP allows you to play imports
• the MODCHIP does not affect the use of genuine PSX games
• the MODCHIP does not affect the use of music CD's in the PSX (but who really uses their PSX to play music CD's?)