It actually began with several 6505 "saveset decompression" errors in the event log. Upon investigating these files, I noticed that there were many instances of the same file, only truncated with a ~1 or ~2, etc. None of these dvs files can be opened. However, there is a .bak file that can be opened if the extension is changed to .dvs. After tracking down the owner of the item, and searching their archive it was discovered that there are about 200 instances of the same message being archived.