Have you ever wonder what are different letters / numbers mean in the titles of video files?
I have taken all the information from Google and I hope this cheat sheet will be useful for somebody.
CAMRip (CAM, deriving from camera)
Sometimes, it is mistakenly labeled as Screen (SCR). Video and audio are recorded on camera in a movie theatre. At times the shaken image can be taken at an angle to the screen, and in some movies could be seen heads of moviegoers, etc. The sound quality might be different such as laughing audience. Usually, it is the worst and the very first quality of movie, which could be found after the official release.