What is the best data recovery software?

Q. What is the best data recovery software for mac os x ? I'm choosing from Data rescue, Stellar data recovery and Disk Drill by Cleverfiles. Help me please. Thank you.

A. Definitely - Disk drill. I heard a lot of good testimonials about this recovery app. Look here at my source for more information.

What is mean by partition table? How data recovery softwares get information about our deleted items?
Q. What is mean by partition table? How data recovery softwares get information about our deleted items? From where do they find them?

A. Information is written all over the disk. The partition table is a list for displaying the lay out of which parts of the table are reserved for file systems. An example is one partition for Windows and another seperate partition for Linux.

When a file is deleted, the reference to where the data is located is removed, but the data is still written on the disk. A data recovery service/software can examine the whole disk and identify all data on the disk to include that which has no reference in allocation tables.

Can someone tell me how a data recovery software actually works?
Q. I've a presentation tomorrow in which I have to tell how a data recovery software works in a nutshell. How it traverses through HD, how it judges whether the data is a complete file or Allocation Table....? How it tells what's the file extension? etc
Plz tell if you have relevant information... best answer gets 10 points!

A. My friend its a very big process to explain how recovery data software works.But one thing i know that when data is lost it can be recovered by data recovery services. One of my friend use the data recovery service to recovery his lost data fro http://www.recovermypc.com/




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