DP 6.20 on Win Srv2K3 SP2 - Media of type Distributed file media format CANNOT BE EXPORTED!!! :(

I have an OLD media in the "Default File" pool.

I can't delete it, recycle it or export it.

I searched a lot before post here but I can't find a good answer that solve my issue.

I join you many screenshot to this post and I hope that someone can help me!

I'm using HP Data Protector 6.20 on a Windows Server 2003 SP2.

http://imgur.com/2Log2kC

http://imgur.com/oVhyJdR

http://imgur.com/OP5RRrQ

http://imgur.com/4f2o3C3