If you want to protect your data from deletion by the final user then you require a  Dual Zone Flash Drive. This special Flash Drive unites the flexibility of a standard USB Flash Drive with the read-only nature of a CD-ROM. When you insert the Flash Drive into your USB port, 2 drive icons will appear: one is for the read-only CD-ROM zone and the other for a standard removable drive (user area). Your 'hard-coded' data is on the CD-ROM zone while still giving users the ability to use the 'Flash Drive zone' as a regular Flash Drive.