How many times have you found yourself looking at the same file or document in different folders. Do you know that there are many duplicate files stored on your hard disks probably They may be waste a lot of space of your hard disks or disturb your work. Organizing computer documents, pictures, songs and video clips can be a pain, especially when trying to keep different versions, you made their backups in different folders and then forgot which one of them was the backup. But how to find duplicate files How to find and delete duplicate files simply and quickly Don't worry about it! Here is an excellent and popular duplicate file search and clean up tool I will commend to you. That is NoClone which came from noclone.net. Following is the detailed introduction of this duplicate file cleaning tool. NoClone is a simple but powerful utility helps us free up disk space by uncovering duplicate files. The boring, businesslike interface isn't very well organized and must be run in full-screen mode to see search results. In the tests, NoClone did its job fairly quickly and let us search for duplicate files by specifying particular drives, folders, and file types. We can choose to locate documents by identical names and content, as well as by partially matching text. Our hard drives may be full of documents, mp3, photos and video and many of them are redundant. NoClone finds and removes true duplicate files by true byte-to-byte comparison, not by CRC. It searches duplicate file contents regardless of filename. Duplicate music (MP3, WMA), photos (JPEG, GIF), documents and any file type can be searched. With Smart Marker, files are selected for deletion. A search session can be saved. Duplicate files can be deleted, moved, or copied. We can clean up our hard drive and manage files better. NoClone can search on up to 3 network destinations and up to 300,000 files. The key functions and advantages of NoClone include: 1. Comparing file content by CRC or MD5 is a common practice of uncovering duplicate files. However the collision rate of CRC is not satisfactory and recent research indicated that it is a possibility of collision even for MD5 hashing. Thus comparing exact content is the only way to ensure accurate result. True Byte-by-Byte Comparison used by NoClone ensure that duplicate files uncovered are exactly same in content. Comparing to find duplicate by CRC or MD5 hash, NoClone uncovers duplicate with 100% accuracy. Some may argue that Byte-by-Byte comparison is slow and not efficient. However NoClone optimized it to an efficient algorithm as good as MD5 hashing comparison. 2. Instead of comparing files one by one, NoClone filter a list of suspected duplicate files with same file size and type. Then those files will be opened and NoClone reads blocks of data and compare. Files with all blocks matching indicate that they are duplicate files. With above algorithm, each file is opened once for comparison, which is the same as MD5 hash comparing methods. 3. NoClone works with any file types. Search duplicate files contents and similar files regardless of file name, file size and date. Search duplicate pictures (jpg, gif), video (avi, mpg), songs(mp3) , DLLs, Office documents(xls, doc, ppt, pub), pdf and any file types. 4. Other useful functions of NoClone inclue: Recover disk space/de-duplication. Multiple path search, exclude, search against master folders. Define our own duplicates: by file name, file size, contents, date. Uncover different versions of master files. Ensure single instance. Find and remove duplicate emails. Search across network paths. Search over local area network. Save search session/Export result to CSV, XLS, XML format and much more. Want to save the space of your hard disks Want to open and edit the right files all the time Well then download NoClone and experience its benefits yourself now!

NoClone 2007-4.1.45g is a Disk Cleanup product from NoClone.net, get 5 Stars SoftSea Rating, NoClone allows you to safely find and remove true duplicate files. It does not rely on CRC checksums, but uses real-time byte-to-byte comparison to detect duplicate files regardless of file names.
NoClone allows you to limit the search to specific file types (images, programs etc.) as well as by size, date and location. You can then choose to delete, move or copy any of the files, or export the result list to CSV format. In addition to duplicates, the software also displays a list of files with the same name, zero size or read errors and offers an image preview. Additional features include an option to match portions of a file and more.
Features:
* True Byte-to-byte comparison , not by CRC/MD5. Why most accurate? support.reasonablesw.com/forums/94/ShowPost.aspx
* Search duplicate files contents and similar files regardless of file name
* Search duplicate pictures (jpg, gif), video (avi, mpg), songs(mp3) , DLLs, Office documents(xls, doc, ppt, pub), pdf and any file types
* Search duplicate Outlook emails (new 2007, v4.1)
* Search files with same contents, same name.
* Powerful fuzzy match to uncover similar files (new 2007, v4.1)
* Smart marker of duplicate files by date, version, size, folder and file name pattern
* Replace by NTFS hard link / shortcut (new v4.0)
* Preview files, show file versions and properties
* Save search session / Export result to CSV, XLS, XML format
* Search local hard drives and over network - edition comparison
Benefits:
* Clean up hard disks, identify and recover wasted disk space
* Reduce backup time and media used for backups,
* Reduce file searching time, minimize time used to unneeded virus scanning
* Obtain more free space on "limited" resources, like notebooks
* Remove duplicate files to eliminate synchronization problem
* Organize files neat and manage files better
* Cheaper than buying a new hard drive, so dont buy new hard drive, buy NoClone.
Sample applications: file management, storage management, document management, digital forensics and plagiary detection. The license of this file & disk software is Freeware, you can free download and free use this File & Disk software.