We have a file that when anyone tries to open it we get: "An unrecoverable error has occured. The program will now be terminated. All of your data has been recently saved, so there is no need to create recovery files".
The file opened fine as of yesterday. One of the guys uploaded a copy to the clients server. This morning, an attempt was made to rename our file via windows explorer to match file naming standards of the client. We got the above message when trying to open the file. The individual then tried to rename the file back to what it was originally but we get the same error message. The client was able to open the file no problem and he then sent back a copy of it to me. It will still not open even though I placed it on my "C" drive and checked Audit and Detach from central.
I have just experienced the self same problem, it was with a Revit Structures model, but I think the same thing is going on here. We are using a worksetted 2009 model, on day of issue the project went corrupt to us, our reseller could open it fine though.