Hi, I used to be able to download the highest quality youtube videos with Parallels toolbox, then use Toast Titanium to burn them to DVD. At home my internet is glacially slow, so transferring them has been a life-saver. I use them for exercise in a specific order. The video converter also fails in making the videos usable. I noticed that the format downloaded is m4v....ewww. After upgrading to Mojave, the Video Downloader now uses a format that Quicktime won't trim, and Toast won't burn. I now have to use Clipgrab for downloading videos. That program is free, so I may just use clipgrab in the future. I thought you should know because you will lose more than just my business if others have the same problems. Thanks.