A transaction system and method is provided that ensures a high degree of non-repudiation. The transaction system may include a media conferencing terminal and a client computer on each end of the transaction. The system may be linked via a network such as the Internet so that transactions may be conducted between remote locations. The media conferencing terminal ensures that each party to the transaction may be satisfied as to the identity of the other parties. The method includes recording the pressure, speed and acceleration of annotations made to digital documents that are used for conducting transactions. The system is operable to store all media conferencing information, digital document information, and annotation information such that the information can be later recovered to reproduce the transaction, proving a high degree of non-repudiation.