| File Type |
DRM Delivery Message |
| File Format |
File |
| Common? |
No |
| File Description |
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. |
| Program(s) that open dm files |
Windows: Sony Ericsson DRM Packager |
|
