Convert to DRM

I have a samsung cell phone that only accepts DRM files as ring tones. I searched for a while and can’t find a converter to ADD the DRM. Is there a way around this or to download DRM music files? I tried MP3, MP4, WMA, WAV and they all won’t work. I need to have a DRM file to set as a ring tone. Thanks in advance for any help.
Answer #1
Are you sure they’re DRM not RM ?
Because all I can find about converting is from RM to other extensions.
Answer #2
Yes they are DRM files. I can find applications to remove the copyright protection, but none to add the protection so that my cell phone will accept them for a ring tone option.
Answer #3
True..well that sucks. Hope someone who knows notice this thread.