Hello forumers ! How are you all ??

First of all, happy new 2012 !

And continuing...

I have a doubt. I'd like to make a program where you can drag music files (mp3, flac, wav, wma..) and video files (avi, mpeg, mp4, vob, mov) and get the property values of this ones...
For example, bitrate, KBps, size, etc, to put them in textbox or listboxes.

If you can teach me how, or give me any references or something, woulr be great !!

Thanks : D !