CDROM Drive mapping in batch file

Could someone help me with a problem. I need to resolve quickly. Easy question for someone. How to you copy files from a CD to c: . For some reason it doesn’t know where the CDROM drive letter is. Here is what I have

PATH=%CDROM%\:
pause
xcopy \files\*.* C:\EA-6B\

ATTRIB -R c:\EA-6B\*.*