YouTube Showcase Pro WordPress Plugin comes with powerful import, export and update tool. You can use it to create backups or migrate your video from one site to another, or bulk update video setting all available parameters. The tool also supports video to video relationships. If you need to bulk update, export your videos to CSV, import into Google Spreadsheets (recommended) or Excel and do the modifications there. It saves a lot of time from clicking this and that. Very easy to use and powerful.