1
vote
1answer
43 views

Clear and informative tutorial on video file formats

...I think I will want to make a tutorial that covers video file formats, and their relationship to video codecs. There seems to always be a lot of confusion around these topics for emerging media ...
5
votes
2answers
482 views

I changed the .mp4 extension of my video to .mpg and it still opens and plays fine (in VLC and in Windows Media Player). Why is this so?

I'm uploading a file to an external system that accepts only mpg or mpeg extension files. I had a mp4 file so I changed the mp4 extension to mpg and I was able to upload the file into the system. ...