MP4 file format - Wikipedia
Mime type, mp4 icon - Download on Iconfinder on Iconfinder
javascript - Convert video codecs to vp9 to mp4? - Stack Overflow
HTML 5 Video tag and IIS | Matt Duffield
HTML5 audio and video | Hot Potatoes Tutorials
How to Fix "Sorry, this file type is not permitted for security reasons"
Sorry, This File Type Is Not Permitted For Security Reasons – FIXED
The Content-Type header
How to Add mimetype to Windows servers - Tutorial | Eldernode
excel - What is a correct MIME type for .docx, .pptx, etc.? - Stack Overflow
Save video error on Android: MIME type video/mp4 cannot be inserted into content://media/external/images/media; expected MIME type under image/* · Issue #423 · react-native-cameraroll/react-native-cameraroll · GitHub
Where can I find the best looking icon set for file extensions (mime types)? - Quora
The MP4 Mime Type | Beamtic
Support for MIME Types | Vivaldi Forum
Inconsistent/wrong file type error messages in web uploader - Bug Reports - iNaturalist Community Forum
How to include mime type for mp4, mp3 and other mime types - CloudHost
MP4 File Extension | Associated Programs | Free Online Tools - FileProInfo
MIME type for audio is video/mp4 · Issue #203 · video-dev/hls.js · GitHub
HTML5 Audio Control
MIMEView v1.10 - Display MIME types information in your system
What is the complete list of MIME Types - ServerCake India
Jeff Widmer's Blog - MIME Type for .MP4 files is video/mp4
