Data recovery involves reading from a drive with some parts potentially inaccessible. is a good fit with this job with its flexible skipping () and other low-level settings. The vanilla , however, is clumsy to use as the user has to read the error messages and manually calculate the regions that can be read. The single block size also limits the granuarity of the recovery, as a trade-off has to be made: either use a small one for more data recovered or use a large one for speed.