Hi, you did not provide any IP information or what version of ASA code you are running so I am putting in generic examples below.
DVR IP: 192.168.1.100
Outside ACL: outside_in
ASA Version 8.3+
object network DVR-port85
host 192.168.1.100
nat (inside,outside) static interface service tcp 85 85
object network DVR-port9000
host 192.168.1.100
nat (inside,outside) static interface service tcp 9000 9000
access-list outside_in extended permit tcp any host 192.168.1.100 eq 9000
access-list outside_in extended permit tcp any host 192.168.1.100 eq 85
ASA Version < 8.3
static (inside,outside) tcp interface 9000 192.168.1.100 9000 netmask 255.255.255.255
static (inside,outside) tcp interface 85 192.168.1.100 85 netmask 255.255.255.255
access-list outside_in extended permit tcp any interface outside eq 9000
access-list outside_in extended permit tcp any interface outside eq 85