Okay so I have a bunch of files and I am trying to save them to PSD so I can work on them in Photoshop. Some save fine and open fine but some say they cannot be saved, an error occured. Is there a reason this is happening? Some are the same files, just different sizes. Of course that doesn't mean there isn't something different between them. Any help? I am on a Mac running Mavericks with the CC version of Fireworks.