I don't know how to install the songs to the game

I've been trying to install songs to the game for hours, I just discovered the existence of PPD and I'm very excited to play it, but I'm stuck trying to make the songs work.

Please I need help

Did you downloaded the videos?
After you downloaded the video you have to put it into the chart folder.

where do you get the videos?

There is a link below the chart that is linked to a video.
You need a video downloader to download it.

First, install the song and unzip it into the songs folder of the game.

Then use a video converter (I use AnyVideoConverter) to convert the url into a .mp4 file, and put the file in the song you unzipped in to the songs folder

i've been doing this but it keeps saying "there is no movie file named 'movie.*' in the directory." i renamed my video to movie.mp4, i downloaded the k-lite codec stuff. nothing is working and i cannot figure it out.