...a general error message, not related to DVD writing, which occurs when temporary files cannot be written.
Could you possibly be trying to write to DVD R disks [can only be written to once] instead of DVD rw? Also, the type of disks used is critical in some drives [some will work, some won't] you just have to experiment with different types!
Are you trying to copy other than DATA with Win XP disk writing service? This is not very reliable in some cases.
There is another issue: will your drive write to DVD +R, DVD -R, or both?