Jurors heard the first secretly taped conversation in the trial of Galleon Group hedge fund boss Raj Rajaratnam — and it didn’t exactly live up to the hype.

In Manhattan federal court, prosecutors, who have hundreds of wiretapped calls that they claim will show Rajaratnam illegally traded on insider information, played three taped conversations between Rajaratnam and his alleged co-conspirators.

In one October 2008 call, Rajaratnam told Rajiv Goel, a former pal who worked at Intel, that he is confident an unspecified PeopleSoft deal will go through before the end of the month.

“We know because one of our guys was on the board,” Rajaratnam told Goel on the taped call.

The prosecution didn’t provide much additional context, giving Rajaratnam’s defense team an opening. Lawyer John Dowd jumped on the witness, FBI agent Diane Wehner, saying the deal referred to in the call had been announced — and was therefore public information — two months before it took place.

Apparently, Wehner did not know about the supposed press release or whether it was relevant to what Rajaratnam supposedly knew about the deal.

Goel has pleaded guilty to securities fraud and is cooperating with prosecutors.

After lunch the prosecution is due to call Anil Kumar, an ex-McKinsey & Co. executive, to the stand.

Kumar, who has also pleaded guilty and is cooperating, is expected to say Rajaratnam paid him money to pass along confidential info about his McKinsey clients, including Advanced Micro Devices.