Verify Image

When an image is created, after each block of data is read from the disk, Macrium Reflect calculates an MD5 hash and saves it in the index part of the image file. When the image file is read back the hash value is recalculated and compared with the original hash in the index. If the original MD5 hash and the recalculated MD5 hash do not match, the image file is corrupt and cannot be read back reliably.

Further Reading

Troubleshooting Verification Problems