Moving dedup backups between 2 dif. Masters

OS is 2008 r2, NBU ver 7604.  I have a Master/Media server with dedup images on it and I want to move those to a new existing master with a different server name and dedup pool.  Is there any easy way to do this short of off loading them to tape and then importing?  If not in 7604 would there be a solution in 7611?

Thanks in advance.