.DR File Extension
File Type 1DRM Rights Object
What is a DR file?
Contains the OMA (Open Mobile Alliance) rights object in XML format, and the key used to encrypt the content of a .DCF file; enables DRM (Digital Rights Management) encrypted files to be opened and played back
File Type 2My Dark Diary Backup File
.DR File Association 2
A DR file is a backup file created by My Dark Diary, an Android app used to journal, take notes, and organize tasks. It contains one or more entries, which includes the text content of the entries and references to any images in the entries. DR files also store metadata for each entry, which includes tags and creation dates of each entry.
When a backup is created by a user, it is saved with other files related to the diary entries in a .ZIP file. The ZIP file is named the same as the DR file, which includes the date and time the backup was created: DiaryApp_YYYYMMDD_HHMMSS.zip.
DiaryApp_YYYYMMDD_HHMMSS.dr - The naming convention of DR files, which includes the date and time the backup was created.