Some open directories are "honeypots" set up by hackers. Clicking a link that looks like a movie file could actually trigger a script or download an executable (.exe) disguised as a video.
An "Index of mp4" is more than just a search string; it is a portal into the skeleton of the internet. It highlights the ongoing tension between the desire for a free, open exchange of information and the modern digital economy's need for control and monetization. As long as servers remain misconfigured and users seek direct access to media, these plain, blue-linked lists will remain a staple of the digital underground. index of mp4 top
This report has some limitations, including: Some open directories are "honeypots" set up by hackers