Time-Bound Voice File

Hi, Greetings for the day !!! We need to get a function made where we can create a time-bound voice file . Example: Voice files (5MB approx) will be sent to our clients via email. We need a functionality in the voice file that it should not play on the client’s system after a specific period of time assigned by us (30 mins/5 hours/2 days/5 days etc.). It could show a message like (the file is corrupted or the file may have moved to a different location) More information: Why we need? To protect our files from being tampered with: Not only will the files be encrypted in a vault, the receiver cannot copy, edit, save, print, forward or burn your files to a disc. It should have 3 easy steps to send our protected files. [login to view URL] the AUDIO files and folders to share into the vault. [login to view URL] the encrypted vault with default settings - no password & date of expiry! (we can choose to change the date settings). Auto-lock protection: The encrypted vault containing the shared files will be auto-locked upon the expiry of the countdown period. 3. Send the vault to the concerned person! Tracks 'copy', 'print', 'save' and 'forward' behaviors by the receiver. Product Features Timer setting: Sender can set timer for files to be viewed. Auto-lock protection: The encrypted vault containing the shared files will be auto-locked upon the expiry of the countdown period. Security settings: Sender can set their own password and the expiry period. Tamper protection: Files cannot be copied, edited, saved, printed, forwarded or burned into discs. This job needs to be completed by this Saturday i.e 21st July'12 Regards Preeti