Image & MS Office Data are not showing in my Pen drive.

Hello Sir,

I facing a problem in my pen drive. first time it not showing any data but used space are showing. when i go to 'RUN' > cmd > then type: attrib -h -r -s /s /d I:\*.* it's only show the videos but not show image & MS Office Data . Please sir say something for this problem & solve it. please please please.