Play.com anticipates Modern Warfare 2 to be the best selling entertainment product ever, eclipsing sales of GTA IV, Mama Mia and The Dark Knight.

The firm has also revealed that it has taken 150 pre-orders a minute during peak times, and will guarantee launch day delivery as long as consumers order their games before midnight on Sunday November 8th.

The offer follows a deal Play.com has signed with a new delivery firm, designed to counteract planned Royal Mail strike action on Friday November 6th and Monday November 9th.

“Our customers’ appetite for this game is without parallel,” says Play.com COO Stuart Rowe, “It’s unquestionably the biggest release that we’ve ever had the opportunity to sell and this unique event is made more complex with the planned industrial action by the Royal Mail.

"Because of the excitement and anticipation for this title we’re going the extra mile and to avoid any disappointment we are using a dedicated service to get the game to each of our customers on the release date. We have many delivery options open to us and we have worked closely with one of our partners to ensure we can offer this delivery guarantee.

“This year we have won the coveted Which Award for best Online Retailer for the second year in a row. This is a result of a continued effort to always deliver the best possible customer service possible. The strike coinciding as it does with the biggest selling entertainment product release ever has presented us with a challenge which we believe our new delivery plan will overcome."