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How file manager handles drm – Audiovox SMT5600 User Manual

Page 178

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Smartphone User Manual

9. System Maintenance

178

Smartphone User Manual

9. System

Maintenance

179

How File Manager handles DRM

DRM is Digital Rights Management, a method of controlling the us-

age of protected media objects after they have been downloaded.

Some digital media files, such as songs downloaded from online

stores, are encrypted to prevent the files from being unlawfully dis-

tributed or shared. Content providers use the DRM technology to

encrypt these files when applicable. During the encryption process,

the content provider creates a license which specifies how and when

the file can be used. Files that have licenses associated with them

are called protected files. More information about DRM (Forward-

Lock, Combined Delivery, Separate Delivery, etc.) was provided in

How Album Handles DRM” in Chapter 3.
The previous figure of File Manager’s List View showed non-DRM

files. The figure below is a sample listing of DRM files. Similar to

the Album application explained in Chapter 3, “key” icons are used

to denote DRM files.

DRM files that can be used are identified by a key icon (with no line).

DRM files that are invalid (cannot be viewed or played because

license has expired or been used) are indicated by a key icon with

a diagonal line running through it.