Messages Among MP4, M4A and M4R

MP4 - Movie or online video that uses MPEG-4 compression, anordinary developed by the Moving Picture Experts Group (MPEG);frequently used for sharing video clips on the Internet.

The MPEG-4 video format uses separate compression for videoand audio tracks. Video is compressed with MPEG-4 video encoding. Audiois compressed using AAC compression, the same type of audio compressionfound in .AAC files.

M4A – Audio file created in the MPEG-4 format, a multimediacontainer format utilized to store compressed video and audio data;contains audio encoded with either the Advanced Audio Coding (AAC) codecor perhaps the Apple Lossless Audio Codec (ALAC).

M4A files are similar to .MP4 video clips since both filetypes make use of the MPEG-4 container format. However, M4A files onlycontain audio data. The use of the ".m4a" extension arose due toconfusion between MPEG-4 video files and MPEG-4 audio-only files.

The iTunes Store provides songs in the M4A format. Thesesongs are encoded using AAC compression, which significantly cuts downon size of each file. Songs that include copyright protection come withan .M4P extension.

M4R – Custom iPhone ringtone made up of iTunes; is only ableto be made out of songs purchased from the iTunes music store thatenable ringtone creation; automatically transferred to the iPhone whenthe phone is synced while using computer using Apple iTunes.

How to Recover iPhone Ringtone Files on Mac

Knowing that you will find iPhone ring tone converter andbuilt-in composers, it might further enhance your cellular phone ringtone once you know the software that's best used with your converter.This information now will let you know exactly how to rescue ringtone for iPhone.

Because of the entertaining effect and wonder of cellularphone ring tones and cellphone wallpapers, computer experts andcellphone manufacturers are quick to development software and gadgetsthat can help in the easy installation of ring tones and wallpapers.This gave birth to an engagement ring tone converter. However, what ifyour favorite ringtone files on Mac were damaged or failed to open upwithout any reason. Do you know the method to restore ringtone files by yourself? If you are not sure about this, now this tutorial below will tell you the method in brief efficiently.

1. To download professional ringtone recovery software on Mac.Here is my searching method sharing here. I type keywords “umacsoftaudio recovery” on google.com, there would be tons of results for you tochoose. I choose the first or second result to open its officialwebsite. Then there is a big green download button for me to freedownload Mac data recovery software on Mac. Actually, this is all-in-onerecovery software for our Mac users around the world. Not only can helpyou restore audio files such as ringtone, also can get your other datathat lost back with ease, including video files, images or photos,documents, emails, ppt or so.

2. When finishing downloading ringtone recovery software, youneed to let it scan your hard drive that stored ringtone filespreviously. After a few minutes, you will get a list on the interface,which contains your damaged lost deleted iPhone ringtone files and anyother files you deleted before on the same computer. So magic right?

3. The last step is simple enough. If you want to review thelost files in advance, then clicking on “Preview” button; and if youneed to recover them, then hitting “Recovery” button.

There it is! You are recover ringtones for iPhone with easeand successfully by yourself. So you can see that this software iseasy-to-use and you do not read again and again its user manual beforeusing it.