ROM = Read Only Memory. Though a CD-R can be written to, generally, it's only once. Then the CD can only be read and being a form of memory, can be called ROM or CDROM when applied to a CD. All music...
The term "CD" means Compact Disk..so there really is no product just called a "CD"..it must be CD-ROM, CD-R, CD-RW,etc. "CD" means the same thing in all categories. The difference lies in the letters...
at start of computer strike F2 and for setup. Now you should tick the IDE CD ROM or IDE DVD ROM drive because it is sometime disabled by the computer and now enjoy your CD's and if this does not work...