On Mac there is no need to resort to a third party application to burn a disk image. The Disk Utility tool allows you to perform this task:
Insert a blank CD or DVD
- Run Disk Utility (Go to Applications> Utilities> Disk Utility)
- In the left column of the interface of the Disk Utility, select the disk image of your choice and click the Burn button
- In the window that opens, click on "Save."
- Now just wait until the burning process is over.