 !CDROM Operations
    
    1. Register CDROM
         Registers the information contained in the CDROM into the
         database.
         Restriction: The CD drive needs to be MOUNTED prior to registering 
         a CDROM.
         INPUT = CD_DRIVE name (It can be a predefined logical name)         
 
    2. Load CDROM
         Loads the files contained in the CDROM on to hard disk.
         Restrictions: CDROM should be REGISTERED prior to loading files. 
         CD drive needs to be MOUNTED prior to loading a CDROM.
         INPUT : CD_DRIVE and CD_DIR names. CD_DIR and CD_DRIVE can be 
         a predefined logical names
 
    3. DELETE FILES
         Delete previously loaded CDROM files from hard disk.
         INPUT: CD_DIR name. CD_DIR can be a predefined logical name.
 
 !CD Device
    
    1. Mount CDROM
         Executes DCL MOUNT command to on-line CDROM.
         INPUT: CD_DRIVE name. CD_DRIVE can be a predefined logical name.
          
    2. Dismount CDROM  
         Executes DCL DISMOUNT command to off-line CDROM.
         INPUT: CD_DRIVE name
 
    3. Show Disk Space
         Displays disk space (on hard disk) and file sizes contained
         in CDROM and space needed to load files to hard disk.
         Restriction: CD DRIVE should be MOUNTED prior to displaying
         disk space.
         INPUT: CD_DRIVE and CD_DIR names
 
 !CDROM Database
 
    1. View  Database
         Views all entries in the science and housekeeping database.
 
    2. Search Database
         Searches Science Database by SEQUENCE/VOLUME number of the
         CDROM or by DATE contained in the data files.
         INPUT : SEQUENCE and/or VOLUME numbers or DATE (yyyy-mm-dd)
 
    3. Sort Database
         Sorts Science Database in CHRONOLOGICAL order or by the 
         SEQUENCE number of the CDROM.
 
 !Process Data
 
    1. Build Catalog  
         Adds science or housekeeping CDROM files(not processed yet)
         to catalog.
 
    2. Format Data
         Formats CDROM data.
 
    3. Process FITS
         Generates FITS files from the CDROM data.
