Mod chip for Ps2 Emulators

Alright, I've been coming to DcEmu for many years now and have been extremely impressed with the work of all these fellow programmers. (I program lots to just not this stuff). First time on these forums.

Now, I just saw link to a ps2 emulator site, and em wondering if you need a Modchip like most all other Psx related stuff. I read above the few exploits in the TITLE.DB file, very interesting exploit found...

I wish to run the SNES emulator, do I need a mod chip?
or do i have to use that exploit? also can I burn them onto Cd-r's...i notice the Ps2 can't even read audio cdr...hmmm..Love some feedback.

you can use the Knife trick for the snes emulator

and by using the knife trick you can use cdrs

although a modchip is easier

knife trick??