Roxio has released a new update for Easy CD Creator Platinum that will bring it up to version 5.3.4. A list of changes can be found here:
http://www.roxio.com/en/support/roxio_support/ecdc/version_history.html#534

Otherwise, you can download this update from Roxio's website.
http://www.roxio.com/en/support/roxio_support/ecdc/ecdc_software_updatesv5.jhtml

If your CD/DVD writer still isn't supported after you run this update, you'll probably need to install the 5.3.4a drive update.
http://softwareupdates.roxio.com/gm/Products/en/ECDC/v53/platnm/DriveUp5.3.4a.exe

Keep in mind that this update is for the Platinum version. It will not work with the Easy CD Creator Basic.