>Can anyone help me with WinAPI calls to write to and actually burn files onto a RW CD in a Window XP environment. I want to be able to push one button in an app and have a backup made and put on the CD. Thanks!

My experience with XP (Home) is that it supports drag and drop copying of files to a CD/RW. Just a guess, but perhaps the Windows Script Host's Scripting.FileSystemObject's CopyFile method might work.