The download version of the MainConcept Motion JPEG Codec is fully functional. Once the order process has been completed, you get an email containing the link for downloading the version, your personal serial number and some information about how to unlock Motion JPEG. The manual is included in the software as a PDF file. While ordering the product you have the opportunity to additionally choose the option ?CD on demand?. This is a backup CD which we can send you for a small charge for production and mail order. Furthermore, you are authorised to obtain all following updates of Motion JPEG Codec within the version 3.xx free of charge. You only have to download the current demo version and unlock it with your personal serial number.