I took it from my own post on another forum
For the Magic V/Messiah 2 users; If you have problems reading the Disk ID because when you're hitting X you're getting invalid ID numbers. The reason you're getting these invalid numbers is because your chip is interfearing with it. There's a way around it now:
1. Put in discid cd into ps2.
2. Hit the eject button and put in orginal.
3. Hit the
eject button (closing the ps2) and
HOLD IT!
4. Hit the X button while
still holding eject (this bypasses your chip because it's in "sleep" mode).
5. To verify,
keep on holding eject and keep on hitting X ( if you're getting the same IDs then it's a valid ID).
Thanks to melvis for sharing.