MD5 HASH: FILENAME: CDA9FEAD0611B897089097C85B3F9327 HS_V5R4_CD1_2014_JULY3.ISO 1B1A429AE2E35A70DDAF1FEDD6CA5F6C HS_V5R4_CD2_2014_JULY3.ISO 27ECF35C5E99C2D8206A049794AD6CC6 HS_V5R4_PC_2014_JULY3.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.