Hi, have a couple questions regarding commercial recovery software, I.e. recuva, easeus. First question is, when it looks at whether a deleted file has been overwritten, does the whole file have to be overwritten for it to be unrecoverable, or if even a couple of byte is overwritten, does that make it unrecoverable? Second question is, can recuva etc.. look at data within bad sectors on a drive? Say that a few byte of a file was in a bad sector, would the software be able to see those bytes? Thanks.