Don't know what to do. Unknown file

Hi,

I dl a file which contained the phrase: DVD repack

When I start to view it, it does nothing.
DL AVIcodec: told me that is not an AVI file
DL Gspot: the window scrambled and did nothing (works with other files)

Anyone an idea?
I am newby with this subjects.
Thx

 

Not 100% acurate but what is the fine extension?

 

The extension is AVI.