MD5 HASH: FILENAME: B64B99BAB12B762308C8347E72C47244 HS_CD1_2014_JUNE2.ISO 5D72642F9F2633E6AE4A5B6E01AA6FE8 HS_CD2_2014_JUNE2.ISO BE6A730F029B37F7EBE2E67A8E201520 HS_PC_2014_JUNE2.ISO There are many MD5 hash checkers available on the web. Some are GUI based and others are command line driven. They are available for all Operating Systems. As long as it uses the MD5 algorithm, any program should work. Here is the link to an open-source Windows MD5 checking program: http://md5deep.sourceforge.net/ Once you have installed it, use the md5deep.exe to calculate the hash - example - md5deep.exe HS_CD1_2014_APRIL30.iso You can then compare that string with the one provided above. Most programs like md5keep even allow you to check one or more MD5 hash strings from a file containing known hashes. Check out the MD5DEEP.txt file for more information.