Convert h266 to m4r

Download and install the latest version of Filestar.
Right click on one or more H266 file(s) on your desktop and select Convert with Filestar.
Type convert to m4r in the search box.
Press Convert.

What is the difference between .h266 and .m4r?

Name: H.266 VVC Video Stream; MPEG 4 Ringtones Audio
Extension: .h266; .m4r
Format: Binary; Binary
Category: Video; Audio
Developer: Apple Inc.
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.
MIME Type: video/x-h266; audio/x-m4r
Sample: sample.h266; sample.m4r
Wikipedia: .m4r on Wikipedia

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Last updated October 3, 2026