Thomas Knoll has created a new utility called DNG Recover Edges, designed to reveal pixels at the very edges of raw files that are, for various reasons, not shown when these images are displayed normally. The simple droplet utility can recover somewhere between 4 and 16 pixels around the edge of the image–not a big deal for most files, but potentially quite valuable when something is getting clipped at the edge of the frame. (Thomas decided to write the utility after taking a photo of a bird that had its wingtip just outside at the frame. The extra 10 pixels he recovered in that shot were enough to put the entire bird in the shot.)
Michael Reichmann provides additional details & hosts the utilities for download from his Luminous Landscape photography resource site. Please note that the utility is Thomas’s own work, not an Adobe product, and is unsupported.