My hard drive crashed and I have a new PC. I had paid for imElfin to enable me to convert Audible books to MP3s. Do I have to buy it again for the new machine or can I transfer it?

I have mi Mac with Mohave,,  Blue ray creator supports this Os version to work and make my blue rays?,, if i upgrade to Catalina, still supports all features?

I went on the Edgewalk on the CN Tower and received a copy of the experience. I was told that we would be able to edit the DVD, but I want to download it onto my laptop just in case. How would I do that?

There seems to be some program recording  YouTube video to mp3 or other audio format.
How do I do that free?

I usually use iDVD to burn dvd format pictures, movies, and data, but in my new Mac computer there is no iDVD, where can I get that (useful for me) program?

I have Mac OS-X 10.11 (El Kapitan) Will creator work for me?

is there to be an upgrade to work with the Catalina on new macBook air?
Had to replace old mac, so no longer works

I am trying to copy Wolf of Wallstreet. When I load the source, i get runtime error. this application has requested the runtime to terminate it in an unusual way. Please contact the application support team for more information. I have never had this error before. Do you know what it means? Sincerely Ralph E. Maclean

How do I import dvd video content onto my macbook? An easy method is preferred!