Preservation of the list of added video files.

Good afternoon.
It is necessary to add the function of saving the list of transcoded video files after the closing of the program. How it is done, for example, in the Vidcoder program. So that, with a new launch of the transcoding program, it continues according to the old list.
At the moment, when starting the program, the list of video files disappears, and it has to be formed again.