Korean PSP Value Pack include Web browser disc, so
I try to find out how it does work.
here is some results.
psp sent some encrypted data(maybe within serial) like
blahblah~ to auth-server.
I traced BIND9 server log. but i found call auth-server part only.
it means content-part is ip-based. i think.
P.S:independent vod&mod player included in UMD.
but it must be launch through web browser now.