What is the file MD5 Signature?
The MD5 Signature (checksum) that shows on the download page for each downloadable file is a 128-bit fingerprint produced by the MD5 algorithm. This fingerprint is a 32-digit hexadecimal checksum produced using the file’s original contents and can be reproduced just as any fingerprint can be taken twice. After the file has downloaded successfully, you can run your own MD5 algorithm using a checksum utility and then compare the values of the MD5 Signature of the downloaded image with the MD5 Signature provided on the download site. If they are the same, the file that you have downloaded is an exact copy of the original file. If the MD5 is different, then the download did not complete successfully even if the file size of the downloaded image is reported to be the same as the one on the site. If you are in need of an MD5 checksum utility, they are widely available for download on the Internet.