Welcome to the Forum.
I echo Forum Member mciahel comments concerning DMA. Perhaps the below referenced Forum posting will be provide assistance in correctly enabling DMA ->
Unfortunately you failed provide specific information on the Manufacture Name/Model Number of your particular DVD Burner. Most new modern IDE DVD Burners Require the use of a Ultra DMA (80-Conductor) IDE/ATA Cable (http://www.pcguide.com/ref/hdd/if/ide/confCable80-c.html) for the DVD Burner to function and operate effectively.
Have you ensured that your undisclosed DVD Burner has the newest most current up to date Firmware available installed?
Perhaps you have some background Multi Tasking operation that is interfering with your Burning operations. Suggest closely review all background Multi Tasking operations and curtail ALL unnecessary Multi Tasking operations.
Suggest reviewing the below Web Page that details how to use MSCONFIG to disable unnecessary Programs that automatically load during Start-Up.
Perchance if you find using â€œMSCONFIGâ€ a little intimidating you might be interested in the â€œStartup Control Panelâ€ utility program ->
The below Web Page provides information on how to determine which items are unnecessary Start-Up items ->