MultiHash

MultiHash builds MD5 hashes for anything from a single file all the way up to an entire hard drive. Every individual file will have an MD5 hash generated, and then an overall hash is produced which can be used to compare directory trees to assure the entire tree is identical without you having to verify that each individual file's hash value matches. These hash values are useful for verifying downloads from sites which provide hashes for their downloads. Typically, you will find these for ISO files, Linux distributions, and many applications. Hashes are also useful for verifying software escrow deposits, since they often require multiple identical submissions to verify the data is not corrupt. MultiHash makes all of this easy, saving a log file of the hashes that are calculated, along with providing an overall hash value.