We currently rely a bit to much on the snapshot name which means we have issues #156 when reading them in.
Ammend/Revert some of the snapshot info so it goes into the snapshot file. and means we can care a little less about the snapshot file name .
this will be breaking in someway, but we can probably offer fail back to previous.
We currently rely a bit to much on the snapshot name which means we have issues #156 when reading them in.