When you use video that you have not filmed, it's important to distinguish it from your footage and credit the creator. Keep in mind that your source of the video and the creator/producer may not be the same. Always confirm the original content creator. This will in turn help you make sure that the information is correct and factual.
Example situation:
You find the perfect news program segment that illustrates your point on YouTube posted by n3wsjunkie.
Ask yourself:
Finding an original source:
Using someone else's footage for a class
General guidelines, in and out of class
There are many free software packages that allow you to extract video files from websites or social media. Many of these have extensive or or misleading advertising on their sites and it can be easy to click a download button and find that you have downloaded malware or software you did not intend to use.
Finding safe software
Software that you purchase, can be safer, but even those options can be problematic.
Extractors and Converters
Screen capture can be very important for instructional videos, or videos that show online communication.
Programs
Note: Not all free screen capture programs export in MP4. When using a screen capture program, make sure you know what file type it will produce. This has become less of a problem since applications started moving away from Flash (.swf), but double-check.