PlayTime
Title: PlayTime
Description: Quickly calculate the total play time of a list of most any music or movie file. That was the original request. Due to further user requests, PlayTime has since been expanded to be a fairly complete front-end for the MediaInfo library. Check out the screenshot.
Version: 1.1.8 (2009-11-29) -- Full changelog
Download: 
Portable zip
Discussion forum: Here
Features:
- Drag & drop interface.
- Export all/selected rows to CSV file.
- Shell extension option.
- Total time is calculated as you add/remove files from the list.
Screenshot:
Click screenshot for full size view.
