InfoTag Magic

InfoTag Magic is a Windows shell infotip extension that displays the title, artist, album, year, bit rate, duration and other information stored in the tag fields of MP3, WMA, Monkey's Audio and Ogg Vorbis files in a tooltip window when mouse pointer is hovered over a file in Windows Explorer.
Also it provides quick preview for plain text files, such as TXT, INI, LOG, BAT, DIZ, BAK and QUE.

As a bonus feature InfoTag Magic displays various properties (target file name, location, working directory, arguments) for Windows shortcuts and version information (file and product version numbers, product name and description, internal name and copyright) for executable files, such as EXE, DLL and OCX.
If you manipulate media files extensively, then this shell extension can be really helpful for you.