Nielsen VideoScan
（重定向自Video scan）
Nielsen VideoScan is a home video marketing research company formed as a partnership formed between VNU's VideoScan and ACNielsen. Both companies are now owned by The Nielsen Company. Nielsen VideoScan provides detailed point-of-sale data regarding sales of VHS videotape cassettes, DVDs, HD DVDs, and Blu-ray Discs. The data is collected from VHS and DVD distribution outlets, such as retail stores, in the United States and Canada and then made available to clients in customized report form through the VideoScan website.