06-16-2012 05:26 AM
06-16-2012 06:12 AM
Welcome to the Community
The .rem extension is placed on media files when you have enabled encryption on the media card.
Article ID: KB12999 How to encrypt files on an installed media card in the BlackBerry smartphone
Article ID: KB22577 Encrypted files on a media card are able to be copied off of the media card in a decrypted state and can be viewed
Article ID: KB11454 Encrypted files stored on the microSD media card appear as .rem files
Goodluck and please let us know if these information answer your question.