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 .