Q: What is the MD5 number on the download page for?

A: In cryptography, MD5 (Message-Digest algorithm 5) is a widely used, secure cryptographic hash function with a 128-bit hash value. As an Internet standard (RFC 1321), MD5 has been employed in a wide variety of security applications, and is commonly used to check the integrity of files. This digital signature is like a fingerprint for a file; changing just one single byte in the file will result in a different MD5 hash. We provide the MD5 hash of our AceErase setup file for those users who wish to check the integrity of the file after downloading. By simply comparing the MD5 hash of the file you have downloaded with the one from our website you can determine whether or not the file is exactly the same. To generate and check the MD5 signature of a file after download you can use the free program MD5Checker, found at http://getmd5checker.com/ or you may download it from CNET's Download.com here . Or you may use any other MD5 generator. There are many to choose from, just Google "MD5 checkers" or "MD5 generators".