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 Interdesigner Software > Products > Comparator Fast > Screenshots > Repeated Files    

Repeated files are "cloned" files:

  • by Name: are files with same names on different folders (maybe Duplicates).
  • by Size: are files with same size on same or different folders. In some situations and jobs, a file with same size may be considered a repeated file. But you need to make sure this works for you, because some files may have the same size but are not repeated files (files with same size, but different content).
  • by Content: this process takes more time but it is the only way to ensure a file is repeated (or "cloned") in same folder or other folder(s).
    Using this method you may be surprised found files with different name or repeated across different folders, but are the same file. This may apply for MP3 files, Movies, Documents, etc.
    Example: you may have the files "C:\MP3s\Top Ten.mp3" and "C:\MP3\American Idol\American Idol's last hit.mp3", both are really the same file (same content) but are repeated across 2 folders: "C:\MP3s" and "C:\MP3s\American Idol".
    This consumes more disk space and with thousands of files you may loose more time. The analysis by content is based on a hash code, unique for each file based on content. The common used is CRC32. It produces an unique "code" for each file, if two or more files have the same CRC32, are the same files no matter file name or location.


What's the difference with DUPLICATES?
Duplicates are files detected as duplicate based on same Name, Size and the search mode you specified: Time, Data or CRC. Ok, comparing by Data or CRC helps you to detect if 2 files are the same, but also mean the files must have same Name and Size (if different Size are considered Bad Duplicates). Duplicates also belongs to same folder structure starting with specified Source and Target folders as reference. This means if you have two duplicate files "c:\folder1\data\file.doc" and "c:\folder2\documents\file.doc" you'll get different results:

  • Comparing "c:\folder1\data" vs "c:\folder2\documents": will detect file.doc as Duplicate.
  • Comparing "c:\folder1" vs "c:\folder2": will detect file.doc as Missing on Source and also Missing on Target, because Comparator Fast starts comparison using "c:\folder1" and "c:\folder2", and the folder "data" on Source does not exists at Target, this causes all files in "data" subfolder to appears as Missing. The same happens with the "documents" subfolder on Target.

But if you enable Search Repeated Files at Scan Parameters, Comparator Fast will detect "file.doc" as Repeated because the file is repeated (by Name) in different subfolders. Please note is important to choose the best search engine that fit your needs. If we refers to previous example, suppose file.doc at Source have 1,024 bytes and file.doc at Target have 3,231 bytes, they are Repeated by Name because have the same name, but are not Repeated by Size because have different size (files with different size will produce different hashes values too).

Repeated files are shown in groups, the first column is the group number. This is just an internal reference number to help you identify repeated files grouped. Grouped files are shown in alternate colors, using light green for background. If you change the sort order clicking on any other column than Group, the files are no longer grouped, and to avoid accidents, the colors change, using a light yellow as background.

Each file shows relevant information in a row. You may notice which file is newer on a group, and also the older file in the group. This status also can be indeterminated, for example, when all files in a Group have the same modified Date and Time, Comparator Fast is unable to determine which file is newer and older.

Right-click on any file name (on file name column) to get Windows Context Menu for selected file(s). Right-click on any other area of information in the file's row to get Repeated Files Context Menu with options. Please note if you alter files using Windows Context menu, you may need to repeat the scan to get the most recent results.Each file row have a check box. In Repeated Files section, you need to check the files to be processed for Copy to Folder, Move to Folder, Delete, etc.. Unchecked files will not be processed.





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