If you don't have any software for burning CD/DVD on your computer and you might want to burn some data disk with your windows XP,here is the hints of how to burn a data disk by XP.
1 insert a blank cd/dvd disk in your CD/DVD Reader
2 Go to Windows Explorer panel
3 Drag and drop any files data to the CD/DVD Drive
4 On the Desktop Double click My computer and click the CD/DVD Drive to open up
5 Take a look on the left top panel you will see the command links say Write these files to CD and Delete temporary files ,so just click on "Write these files to CD"
6 you have done ,wait for your data disk