Invalid or Unsupported File

Hi All,

I came into the office this morning and opened up a project I have been working on for a couple of days now, and received a list of missing files. When I go to relink the files I get a “Error: Invalid or Unsupported File!” dialogue. This happens in both Nuendo 7 and 8, and I can’t for the life of me figure this out. All the audio files are in the the same folder that they have been in since the start of the project and it has not moved to/from any other computer.

Running Windows 7 Ultimate, 16gb ram.

Any help would be greatly appreciated.