From time to time some downloaded video files (mp4 or wmv format) have dowload errors.
I usually use wmp player. This means that wmp player stops playing the mp4 files and the
wmv video becomes blurry for a few seconds where the errors are in the dowloaded file.
VLC media player continues playing the mp4 files but with a blurry picture for a few seconds too. Fact is that the downloaded files have errors. I download these files again or even more times and then with some luck they play fine.
Is there a tool which can check quickly that the files are ok. I know that there is no tool
which can check the integrity of mp4 files.