How do you use Protection ID?? :(

[FreakAreeque]

hi guys,
i've just downloaded Protection ID 5.0 final C. Now the thing is i havent used it before. BTW, i am trying creat a backup of Quake 4 CDrom version. Anyways so what happens is, i start the software (protection id) and the new window has buttons in the right side. The buttons say:
scan
multi scan
about
quit

And on the left side it has checkboxes that says,
context menus
scan files >20mb
agressive scan
smart scan

The last two is checked by default.
Any ways, so i clicked scan and it tells me to "select file". I thought it was gonna scan the whole disc !! Whatever, so i go to the cd rom and select the setup.exe file. it scans the file, and says, that "the file is using no or unknown protection". I have tried some ohter files aswell. but same thing.
SO i went to alcohol120% to proceed wtih the copying wihtout selecting what protection the disc is using. Obviously, it gave me an eror and stopped. DUH!!
So i NEED to know what protection it is using, and it seems like im not knowing how to use protection ID.
SO CAN ANYONE PLEAS HELP ME??? like tell me what i need to do, what i might be missing or or any other easier way to do it.
Thanks a lot to all that will input.

FreakAreeque
AIM- FreakAreeque
areeque********com