When trying to import a specific .mpg file, it gives me an error message: "Could not complete the last command because: Use of invalid editor file reference::file reference editor database." Solution
This usually stems from a corrupted folder or path error. We have found it best that you place all of your session's elements/assets (images, video clips, audio clips) into a single folder on the top level of a local drive (preferably C:). If you want to add a new asset, then place into this folder first then import the asset into the session. This makes it easier for not only our program, but the burning process as well and helps eliminate path errors.
Also, this error can occur with corrupted source files. If the above solution doesn't work, try re-encoding the file and reimporting.