According to the company:
Lexigogo video contracts are electronic documents signed with electronic signatures and are therefore legally binding for most personal and business transactions around the world (including the United States, the European Union, Canada, Australia, Russia and India).
Lexigogo video contracts have been developed so that:
A signer can uniquely be identified
A signer can be uniquely linked to a signature
The signers have access to their contracts at any time
Effective contracts cannot be altered or tampered with
More at http://www.lexigogo.com