Abstract: A memory card used to store digital content can be secured by masking files in such a way that the files are not accessible via the FAT file system supplied on the card. The masking process can include pointing the directory entries for the protected file to a dummy file, removing cluster links in the file allocation table and encrypting the headers of protected files. Once inserted, an un-masking application can temporarily un-mask the protected files and initiate playback of the digital content. The un-masking process can include restoring the FAT cluster chains, directory entries and content headers on the memory card. Once the playback is initiated, the files can be immediately re-masked to protect the card in case it is removed during playback. The masking and un-masking processes can also include encrypting and storing a serial number of the memory card onto reserved sectors to prevent unwanted copying.

Abstract: The various embodiments disclosed are generally directed towards systems and methods for managing and displaying content rich data, such as multimedia, residing on a removable memory apparatus inserted into a handheld device. In one aspect of the invention, a method comprises launching and displaying the content rich data soon after the device is inserted into a handheld device and monitoring the number of times the content rich data was launched and displayed. If the content rich data was launched a specific number of times, then the content rich data is deleted from the handheld device.

Abstract: The various embodiments disclosed are generally directed towards systems and methods for loading software from a memory card on to a handheld electronic device. In one aspect of the invention, the memory card includes a plurality of directories, wherein each directory corresponds to a particular type of handheld electronic device. Further, each directory may include a program that the device may search for and execute automatically. The program may either install software onto the device's memory, launch software from the device's memory, or launch software from the memory card.