Hello, I am recently doing research on the value of 'behind-the-scenes' to Scottish Ballet which tends to use a digital platform to distribute different form of contents to attract public attention. Under that situation, in order to deeply understand and classify those contents, and to select which content can be categorized to 'behind-the-scenes'. I plan to use content analysis as my research methods. However, Due to too many resources, I don't know how to choose the period of my data to analysis. And I am also confused about how to analysis videos...... someone help me?