For a long time, I've used the 'highlights' mode to view shots on the back of my D90, with the understanding that any part of the image flashing is overexposed and no detail will be able to be recovered from this part of the image. However, I read somewhere that this 'highlights' display is actually based on a rudimentary in-camera JPEG conversion, meaning that possibly some detail in these areas would be recoverable from the RAW file? Can anyone confirm or refute this?