Apple CEO Steve Jobs assured CNBC viewers that his company isn't under investigation by US regulators following its recently revealed stock options problems.

A video, which has emerged on popular video sharing website YouTube, shows Jobs speaking candidly about several matters relevant to the company.

"We started our own investigation and we did discover some irregularities," he explains. "We're letting that investigation have its due course. It will be completed in the not too terribly distant future," he said.

He refused to discuss it further pending completion of the investigation so that it can continue "completely independently".

On his iPod news at the Showtime announcement this week, Jobs said: "We have good expectations for how many iPods we're going to sell next quarter, but we're in unchartered territory. We've never sold this many of anything before. And so we are learning as we go. But so far we are pretty happy."