Which (e.g., Windows 10, Windows 11) your system currently uses?

Official downloads are completely free of viruses, spyware, and tracking software.

For ConvertXtoDVD 6 specifically, if you're looking for a legitimate way to use it:

An open-source video transcoder that can convert almost any video format into standard MPEG-2 formats suitable for DVDs.

The "Image Quality Advisor" predicts the final output quality before you start the conversion.

ImgBurn is a lightweight but highly powerful CD/DVD/HD-DVD/Blu-ray burning application.