Many of you may familiar with my problem. Some of the movies/tv programs I downloaded from internet (for personal viewing only,) one thing I commonly face with the annoying pop up messages, in the middle of playing, like-
a. compressed by .......
b. DDR
c. Encoded by ....

if it's a text attached with the video then it's not a problem, I can remove it with mkvmerge. But problem is some of these video file has not such kind of text attached with them. Now can anyone help me how can I remove those annoying messages from those video files???

I'm new here. It's my first post. Sorry if I made any unwanted mistakes. I hope some of you might help me to solve this problem.

P.S. I don't want to crop/darken those portion. I already read those kind of solution but I think that was meant for the channel logos, as in my case I'm not talking about any channel logos/adds.