Question : Split Windows Backup Files

Is there anyway of have the Windows Backup Utility split the backup file into multiple files that I can copy in to DVD's?

Answer : Split Windows Backup Files

Check out this link,

http://www.brothersoft.com/file_disk_management/backup/firestreamer-dvd_32953.html
http://www.regnow.com/softsell/nph-softsell.cgi?item=11047-2&affiliate=19793

According to this software it will allow you to ""Microsoft Backup Utility (NTBackup) and Microsoft SQL Server Backup (SQLBackup) to back up your data directly to a wide range of backup media, such as DVD," and "media and drive spanning"

Also if you are looking for something all inclusive, I believe Acronis makes a product called True Image that will do this for you.  Burns directly to DVD and just asks you to insert another disk when it is full.  Check out http://www.acronis.com/enterprise/products/ATICW/