Windows XP can write data to CD-RW, but not directly from NTBackup. However, you can place backup files in the XP CD-RW write subsystem’s spooler, which effectively writes the data directly to CD-RW.

To add files to the spooler, perform the following steps:

1. Start NTBackup (go to Start, Programs, Accessories, System Tools, and click Backup).
2. Select the Backup tab.
3. Select the files that you want to back up to CD-RW.
4. Select File for the type of "Backup destination."
5. Enter the following file location:
   C:\documents and settings\<username>\local settings\application data\microsoft\cd burning\backup.bkf
   If you aren’t sure what the <username> variable needs to be, go to a command prompt and type:
   
   echo %username%
   
   to check your %username% environment setting.
6. After you specify the location of your files in the CD-RW cache, right-click the "CD write" icon in Windows Explorer and select "Write these files to CD" to write the backup files to CD-RW.