This guide presumes you have Toast Titanium 17 or 18 (the “1720” in your query likely refers to a version/build or a bundled extra pack). The principles apply to v19 and v20 as well.
Roxio Toast Titanium 17.2.0: A Comprehensive Review of its Features, Capabilities, and Extra Quality roxio toast titanium 1720 extra quality
The benefits of using Roxio Toast Titanium 17/20 are numerous: This guide presumes you have Toast Titanium 17