What you need
A Mac with a compatible CD-R drive, Roxio Toast Titanium 5 (commercial). Procedures under Mac OS 9 are essentially the same as under Mac OS X (shown here).
Potential problems
Toast Titanium supports a wide range of drives, but not all. You won't be able to use it if it doesn't support yours. The best support is for FireWire and ATAPI (IDE bus) drives, with USB drives well catered for as well. Older SCSI peripherals are less likely to be supported now. If your drive isn't recognised, shut down, check connections carefully, power up the drive (if external), then start up your Mac. Inserting a blank disc may prompt OS X to ask you whether you want to initialise it, but don't let it, as Toast handles initialisation itself.
Some drives don't work with some makes of CD-R discs, and you may need more expensive, branded discs to avoid errors and subsequent data loss. Check important discs in a regular CD-ROM drive when they've cooled down after burning.
Further info
Toast Titanium is available from Roxio at, which lists compatible drives and so on.
Checklist
Check your drive is recognised.
Select the format of CD-R you wish to create.
Name the volume and drag and drop files for it.
Check speed and adjust buffers if necessary.
Record, choosing whether one session or whole disc.
Allow verification, label and store.
Click 'Next Page' below for the step-by-step guide...Burning CD-R discs using Toast Titanium