Soundtrack Research

Music
http://www.bensound.com/royalty-free-music/2

http://www.purple-planet.com

http://incompetech.com/music/royalty-free/

https://www.youtube.com/audiolibrary/music



Sound
https://www.freesound.org

http://soundbible.com/royalty-free-sounds-1.html

https://www.partnersinrhyme.com/pir/PIRsfx.shtml

The weblinks listed above are all royalty free. This means we can use it without having permission from anyone.



If you are not caught then you are quite lucky, but if you start to make money of your video then there is a bigger chance of being caught
If you use copyrighted music and your caught, there are some serious consequences. One of them being, that the artist can choose to sue you.