Data Recovery Engineering Software

The default reporting in file lists are;

• Header OK - Indicates that the file headers match and the file is good.
• Header Corrupt - Indicates that the file headers do not match and the file is probably corrupt.
• Unknown File - No entry for this file extension in the database.
• Zero Bytes - File has no data.
• File too small to test - File is less than 512 bytes - the minimum that can be read by FLT **
• Access Error - FLT could not open the file for testing or copying.
• Encrypted File - File is encrypted and can not be tested.
• No Extension - The file has no extension and can not be tested.
• Bad Filename - The filename contains invalid characters
• Common File Header - File does not match as OK, but matches a common file type.

All of these can be changed to reflect uniqueness in the file list viewer. For example, you may want to change 'Header OK' to 'File Tested OK'

** Files of less than 512 bytes will generally be ok provided that the filename is ok. The reason ? - With modern NTFS based file systems, files of less than around 900 bytes are stored within the MFT record itself and not in the data-storage area of the drive. So if the filename is ok, probability is that the file is OK too.