Sony has admitted there's a problem with some PlayStation 2 Memory Cards - or rather that there's an issues beyond the trouble the company has had sourcing sufficient MCs to go round. Claims that the consumer eletronics giant was recalling all the MCs it had shipped emerged on Wednesday, but were quickly denied by Sony's US wing. A spokeswoman said simply that Sony was experiencing MC production problems, something her Japanese counterparts had already coughed to. On Monday they revealed that although 980,000 PlayStation 2s had been sold over the console's launch weekend, two-thirds of online buyers had yet to receive their machine. Sony nows says there is a glitch with MCs, and has asked customers who have experienced problems with their console's built-in DVD player after saving games on an MC to return card or console to the company. The bug surfaced when players of Namco's Ridge Racer V game found that after saving their game, when they went back to the console, the game, which ships on a DVD, would not play properly and neither would DVD movies. The PlayStation 2 stores its DVD driver software on the Memory Card. So either Ridge Racer isn't writing to the card correctly or the card is at fault. Sony said its investigation of the problem so far had ruled out glitches the console's software. Namco is investigating the problem too. ® Related Story X-Box unleashed: MS snubs PC OEMs, dumps AMD Athlon?