M4A file, also known as Apple Lossless Encoder, is an audio format that is similar to MP4 file. The only difference between them is that M4A file contains no video inside. As an audio file, it has been widely used in Windows computer, Mac computer, different music players. However, M4A file loss can still be caused by improper deletion, corruption and damaged or misplaced music players. If you want to recover lost or corrupt M4A files, you’ll need a third-part M4A video recovery program.
Recoverit Data Recovery, or Recoverit Data Recovery for Mac is a powerful program that helps you to recover M4A files effortlessly. It supports M4A recovery from music players, computers, external hard drives and storage cards.
You can download the trial version of Recoverit Data Recovery below. The trial version enables you to scan the device so that you can check whether M4A files found by this program are what you want to recover or not.
Note: This tutorial is based on Recoverit Data Recovery for Mac. For Windows users, please download Recoverit Data Recovery for Windows and read its user guide. All these two version data recovery can help you perform "Partition Recovery", "Deleted File Recovery" and "RAW Hard Drive Recovery".
Step 1. Select Scenario
To recover deleted or lost M4A files, you can select "Deleted Files Recovery" to start perform M4A recovery.
Step 2. Select Hard Drive You Lost Files to Scan
As you can see from its interface, hard drives and external storage devices will all be detected by this program. You just need to select the hard drive where you lost M4A files to scan. You can also recover video files from storage device by connecting it with Mac too.
Step 3. If quick scan can't find your lost M4A files, you can go to "All-Around Recovery" to scan again.
Note: You can stop the scan during the process if you have found the M4A files you want by clicking “Stop” button.
Step 4. Preview Names of Deleted M4A Files and Recover Them in Mac
When the can finishes, the recovered files will be listed in folders. You can preview recovered M4A files by clicking folders. You can recover M4A files selectively and save them on your Mac.
Notes: For the safety of recovery, please do not save the recovered files back to the place where you lost them.
Due to macOS High Sierra (macOS 10.13) requirement, Mac users are not allowed an access to the built-in system drive from any apps. Therefore, if you need to restore lost data from the system disk under macOS 10.13, please "disable System Integrity Protection" first.
How to disable "System Integrity protection"? Please follow the steps below.
Step 1Reboot the Mac and hold down"Command + R" keys simultaneously after you hear the startup chime, this will boot OS X into Recovery Mode.
Step 2When the "OS X Utilities" screen appears, pull down the "Utilities" menu at the top of the screen instead, and choose "Terminal".
Step 3In the "Terminal" window, type in "csrutil disable" and press "Enter" then restrart your Mac.
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