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Video can be very useful. Most banks and stores  have video cameras. They protect the premises. When there  is a robbery, the police can study the video. They can often identify the robbers in this way

Videos are very useful in education. Many schools use them as teaching aid. You can take university courses at home with the help of a VCR (video cassette recorder). In the future, they will be even more important in education.

Videos are very important in the music industry. You can now  buy VCDs (video compact discs) in many countries worldwide. They play music and show video images at the same time.
 
1) All banks and stores have video cameras
2) the police can identifi the robbers by studying the video
3) videos are useful things to have in the classrooms
4) you can record and show TV  programmes on video tape with the help of a VCR
5) videos are more important in education than in the music industry