Psx games Drivers 2 or any multiple disk psx games

[Killjoy]

Hi! Here's my problem. Drivers 2(us version) is a multiple game (2 disks) and seems not to be protected against MOD-Chip. I burned the 2 disks and was able to play the game without any problems. SURPRISE, when they ask me to insert disk2 (i've had finished the first one and really enjoy it), I put the cd in, the psx load and........ PLEASE INSERT SONY DISK appears. I know the modchip is used only on boot (power on/off) but i can't boot with disk 2. He's there a way to patch the second disk or every multiple disks games or the same? Can somebody tell me a way to play the second disk. Do I need a game enhancer?
Can't wait to finish that great game!!!!!!!!!!!!!!!!!

waiting for help
thanx