WD500 labeled as a "CD-ROM" by Windows XP--can't reformat it

I need to know how to switch the WD Smartware drive to a regular back up drive with manual control of what files go onto it.

I have done the software update and the firmware update and neither made any difference to the performance of the drive.

I can manually transfer files to the WD500mb that is labeled “K”.

I cannot do anything with the WD 500mb that is labled “J”.  I cannot take files off of “J”–when I try to remove the user manuals that are in languages other than English, I get this message:

 “Cannot delete User Manual: Files on this CD-ROM drive are read only.  You cannot copy or move files over to this CD-ROM drive.”

“J” has all the WD software on it.  When I open the  “Virtual CD Manager” that is on drive “J” it only allows me to change settings on the WD500 that is drive “K”. 

When I disconnnect drive “K”, all the contents are still readable as long as drive “J” is still connected.

I do not understand this. 

How do I change “J” from a “read only CD-ROM”?