All the action from the Pool A game in Sydney.
Result: Ireland 64-7 Namibia
77 mins: Ireland spread the ball out to the left for substitute John Kelly to go over in the corner for another try. O'Gara strikes a superb kick from the touchline, his seventh conversion from 10 attempts.
Ireland 64-7 Namibia
69 mins: Shane Horgan takes an O'Gara pass to go in on the right for Ireland's ninth try. The Irish are now on target for a record margin of victory in a World Cup game, their previous best being a 53-8 win over the USA in 1999.
Ireland 57-7 Namibia.
65 mins: Referee Cole consults again with the video judge who rules that Miller got the ball down on the line for his second try of the game. O'Gara curls in a good kick for the additional two points.
Ireland 52-7 Namibia
60 mins: Ireland drive towards the line and substitute scrum-half Guy Easterby gets over for Ireland's fourth try. O'Gara succeeds with the conversion.
Ireland 45-7 Namibia
50 mins: Flanker Quinlan blocks down a kick by Wessels and takes advantage of a favourable bounce to run on and score his second try of the game. O'Gara's conversion goes right of the target.
Ireland 38-7 Namibia
Half-time: Ireland 33-7 Namibia
38 mins: Namibia get points on the board when centre Corne Powell forces his way over for a try. Emile Wessels coverts from in front of the posts.
Ireland 33-7 Namibia
35 mins: Ireland add more points through another try by Eric Miller and O'Gara again adds the two points with a straightforward kick.
Ireland 33-0 Namibia
31 mins: Ireland get their fourth try and an important bonus point after the television match official rules that Marcus Horan had sneaked in for a touchdown. O'Gara lands the conversion.
Ireland 26-0 Namibia
29 mins: Ireland press again but Shane Horgan is held up by the Namibian defence defence just short of the line.
20 mins: Another Namibia infringement leads to lock Heino Senekal being sent to the sidelines for 10 minutes by rerferee Andrew Cole.
19 mins: From a penalty, O'Gara kicks into the corner to put the Africans under more pressure.
13 mins: Denis Hickie, setting a record number of appearances for an Irish winger, makes the corner for another try, his third in the tournament. O'Gara lands a superb touchline conversion.
Ireland 19-0 Namibia
12 mins: Heavy rain makes handling difficult for the players.
8 mins: After an Irish scrum close to the Namibia line, Brian O'Driscoll feeds Girvan Dempsey and the full-back forces his way over for a try. O'Gara is off target with the conversion.
Ireland 12-0 Namibia
2 mins: Ireland apply early pressure and back row Alan Quinlan charges over for his third try in an Irish jersey. Fly-half Ronan O'Gara makes it a perfect start for Ireland by adding a fine conversion.
Ireland 7-0 Namibia
Ireland: Dempsey, Horgan, O'Driscoll, Maggs, Hickie, O'Gara,
Stringer, Horan, Wood, Hayes, O'Kelly, O'Connell, S. Easterby,
Replacements: Byrne, O'Callaghan, Costello, G. Easterby,
Humphreys, Kelly, Best.
Namibia: Pedro, Mouton, Grobler, Powell, Dreyer, Wessels,
Husselman, Lensing, Meyer, du Toit, Senekal, Graham,
van der Merwe, Duvenhage, Furter.
Replacements: Van Tonder, Blaauw, Lintvelt, Van Lill, Swanepoel,
Referee: Andrew Cole (Australia).