The Impossible Feat inside Your VCR Technology Connections : Season 3 Episode 1

These days a VCR seems more quaint than anything else. But in fact, there's a device inside every VCR that solved what seemed to be an unsolvable problem. The video head drum is a fascinating solution to the complex problem of tape speed, and therefore I think it deserves to be remembered. Plus, the video head drum shares some motor technologies with modern hard disk drives. So there's that.