Patent ID: 7457780

Claim:
A digital contents sales method for selling digital contents in a digital contents sales apparatus for transmitting the digital contents to a user via a network, the method comprising the steps of: receiving, from a user via the network, an input for indicating purchase of first digital contents; storing, in a digital contents personal using condition management table in said digital contents sales apparatus, a first digital contents personal using condition including first identification information of said purchased first digital contents and information of personal using conditions of said digital contents to said user; transmitting said first digital contents corresponding to said first identification information of said purchased first digital contents to said user; in response to an input of identification information of said user, searching, from said digital contents personal using condition management table, at least said first digital contents personal using conditions corresponding to said identification information of said user; generating a personal using condition list page including at least said first identification information of said purchased first digital contents based on at least said first digital contents personal using conditions searched from said digital contents personal using condition management table; transmitting said personal using condition list page to said user via the network; receiving from said user via the network a request for retransmitting one of digital contents displayed in said personal using condition list page; and retransmitting said digital contents requested, only if a digital contents personal using condition corresponding to said digital contents requested is valid.