
Processor : Intel Core 2 Duo Processor
CPU Speed : 1.5GHz or above
Operating System : Mac OS X 10.3.9, 10.4 Tiger, 10.5 Leopard and Snow Leopard
Memory : Minimum 512 MB (1 GB recommended)
Hard Disk : 40 MB of free disk space
"Undelete Mac file has helped me to recover my important files which i had deleted accidentally. This software is really great and helped me from a great loss." Anna, UK
"It's really work. Yes i was not sure about the software performance but it really recovered all my deleted files and data back. lot of appreciation and thanks to the team." Thanks, Boris
"The disk is unreadable: Do you want to initialize it now?"
Have you ever experienced this unusual error code on your Mac system? If it is so then there must be something wrong with your system. In this situation you should not get panic and try to resolve the error as early as possible. Sometimes these unusual Mac errors may turns into critical data loss situation or irreparable system problems. Get instant help to fix ‘The disk is unreadable’ error in order to avoid any major system issues. But before moving towards the repair steps it is very important to know about the error, causes, symptoms and its consequences.
The disk is unreadable error is generally experienced by the users of Macintosh operating system. This error may appear on any version of Mac OS. This error mainly occurs due to problem in external hard drive. Mac supports several storage media and external hard drive is one of them. This drive is normally used for backup of system files and for data security purpose. Sometimes external hard drive became inaccessible and critical data loss situation occurs. In this situation Mac operating system cannot read external hard disk and you may receive some unusual error codes on your system in this situation. Most common error in this situation is:
"The disk is unreadable: Do you want to initialize it now?"
You may attempt to run disk utility tool in this situation to fix the problem. Sometime disk utility works and solve the problem but in some difficult situations it fails to solve the problem and closes unexpectedly with an unknown error message left behind on the screen like:
"Verify and Repair volume "disk1s3" Checking Journaled HFS Plus volume. Invalid node structure Invalid B-tree node size Invalid node structure Invalid B-tree node size Volume check failed. Error: File system verify or repair failed."
However, this error code will help you to find out the root cause of the problem. It states that possible causes behind Mac problem are corrupted data structure, damaged hard disk profiles or library files of Mac operating system. Sometimes node structure corruption and damaged file structure also cause this problem.
How to solve ‘the disk is unreadable’ error on Mac:
You need to reinitialize the disk but this process will remove all data from Mac hard disk. It is recommended to keep complete system backup before initializing the disk. If you do not have any backup then use third party undelete Mac files to restore the Mac data that removes from the system during repair process. This is easy and sure way to fix the problem. If disk utility related errors are on your system then run fsck command option on your system to solve the problem. It is pretty sure that this utility tool of Mac operating system will solve entire Mac problem. If there is any damaged file structure on system then replace it with new file from some genuine source. You may use third party undelete Mac file tool to restore data that removes from system at any repair step. It is suggested to update your system backup on regular basis for data security.

Launch Mac data recovery software
Now select volume for recovery of deleted data
Select file type
Now Start Scan
After scanning software recovers all deleted files including trashed one. From here restore files which you want at your specified location.