Replay Solutions, a Redwood City provider of technology that tests software for bugs, said it has raised around $4.2 million in a first round of financing.

Here is the company’s statement.

The round was led by Hummer Winblad Venture Partners and Partech International. Replay Solutions’ technology was developed over the past three years.

Mark Gorenberg, managing director of Hummer Winblad Venture Partners, and Nicolas El Baze, general partner of Partech International, have joined Replay’s board.

Replay says its technology provides a recording and playback ability to any software application or server allowing software developers to locate and eliminate defects.