Why can't Download Master download some Youtube videos?

Question

YouTube

The situation is this: I'm trying to download a playlist, some videos are downloaded normally, others are like this: filename.mp4 is downloaded in DM, then filename_a.mp4, then filename_a[1].mp4 and so on in a circle. Does anyone know what is the reason?

Answer 1

For example, you need to download this:
in order to download such a video, it is not necessary to download some kind of downloaders, but just do this:
and paste it into the address bar and select the item download without installation and that's it