Explosive iPod sales have driven success for Scotland, with Scottish electronics maker Wolfson Microelectronics this morning revealing "accelerated sales".

Wolfson makes components for multiple devices, but is a longstanding Apple partner with the iPod. It makes a chip that changes digital signals to analogue ones - transforming bits and bytes into sound and images.

iPod sales are 220 per cent higher than in the same period last year. However, while the company rarely if ever mentions its relationship with Apple, it says: "Some customers experienced better than expected demand for their flagship products."

The company now expects its second-half revenues to be in excess of $90m, compared to current market consensus of approximately $79m. The higher revenues will result in operating profits ahead of previous expectations.

CEO David Milne said: "We entered the second half of the year with a record order backlog which has translated into good revenue growth in the third quarter. The backlog has continued to increase with stronger demand for our products, from a range of customers, giving a strong finish to 2005."

Since announcing the news early this morning, the company's stock has climbed £0.2045, bringing its stock to £2.3645. The company has a market capitalisation of £301.59 million.