What is the difference between .m4r and .cvs?
- Extension
 - .m4r
 - .cvs
 
- Format
 - Binary
 - Binary
 
- Category
 - Audio
 - Audio
 
- Developer
 - Apple Inc.
 - Motorola
 
- Description
 - M4R is an iTunes ringtone file that stores mono channel audio. They are identical to the M4A format files only that they are correctly used for ringtones.
 - Continuously Variable Slope Delta modulation is a voice coding method. It is a delta modulation with variable step size (adaptive delta modulation), first proposed by Greefkes and Riemens in 1970.
 
- MIME Type
 - audio/x-m4r
 - application/octet-stream
 
- Sample
 - sample.cvs
 
- Wikipedia
 - .m4r on Wikipedia
 - .cvs on Wikipedia