.dm文件扩展名，.dm文件如何打开？

.dm

文件类型：DRM Delivery Message

扩展名为.dm的文件是一个音频文件。

文件说明：

Media file (typically audio) that has been encoded with DRM (Digital Rights Management) copy-protection; used by some cell phones for ringtones and other media clips.

DM files are created by the DRM Packager Tool for Sony Ericsson phones; they can only be opened using an authorized cell phone..dm                                                                      

打开.dm文件

Mac OS

　

Windows

Sony Ericsson DRM Packager　

Linux

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来源：. dm文件