Recording of Michael Jackson doctor Conrad Murray played for jury

(AP) LOS ANGELES - Jurors who have sat facing Dr. Conrad Murray for two weeks listened Friday as the physician detailed in a recorded interview his interactions and treatments on Michael Jackson in the months and hours before the singer's death.

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Murray sounded calm on the more than two-hour recording as he spoke of their relationship, efforts to save his life and the medications he gave Jackson in his efforts to get him to fall asleep. It was the first time Murray's interview with police detectives had ever been played in public.

The June 27, 2009 interview outside a noisy hotel ballroom gave police their first hint that Jackson's death was not from natural causes and that he had been given the powerful anesthetic propofol in an effort to cure his extreme insomnia.

"He's not able to sleep naturally," Murray told the detectives early in the interview.

Just before court adjourned for the day, Murray is heard on the recording telling detectives that he had no intention of hurting Jackson. "I did not want him to fail."

Murray told the detectives how he met Jackson and walked them through the treatments he gave the singer on the day he died, including doses of the sedatives lorazepam and Versed.

Jackson remained awake for hours after returning home around 1 a.m. on June 25, 2009 following rehearsals for a series of comeback concerts. "It was 4 o'clock in the morning, and then he complained," Murray said. "'I've got to sleep Dr. Conrad. I have these rehearsals to perform.'"

Jackson threatened to cancel that day's rehearsal, so Murray gave him some more lorazepam.

In a calm, slightly accented voice, Murray told detectives that the singer remained awake and continued to complain about his lack of sleep.

Murray told detectives he relented to Jackson's demand for his "milk" - a nickname the doctor said the singer used for propofol, which is a milky-white liquid.

Detective Scott Smith was confused by the reference at first, asking whether Jackson wanted hot or cold milk. Murray then explained it was an anesthetic.

Over the course of the interview, Murray told police that other doctors had given the anesthetic before.

Defense attorney Ed Chernoff told the detectives that Jackson was familiar with how the drug was administered through an IV and certain dosages.

Murray told the detectives he took all possible precautions - keeping oxygen and a pulse monitoring machine nearby - and constantly warned Jackson that using propofol was an artificial way to sleep.

Prosecutors contend that Murray was reckless by giving Jackson propofol outside a hospital setting and without the proper monitoring equipment.

Murray said Jackson told him before he agreed to be his personal physician that he might need help. The physician said Jackson told him that he expected to sleep for 15 to 18 hours at a time.

He said Jackson told him, "'You don't quite know or understand that these hours are long."

"I think, on you, it will be too much," Murray said. "What Mr. Jackson knew is this is something he did every day."

Authorities claim Murray gave Jackson a lethal dose of propofol and other sedatives while trying to help the singer. Defense attorneys say Jackson gave himself the lethal dose after Murray left the room.

Murray has pleaded not guilty to involuntary manslaughter. If convicted, he faces up to four years behind bars and the loss of his medical license.

In the recorded interview, Murray recounted how the singer sought him out in early 2009 to help him prepare for his upcoming series of comeback shows.

"Then I got a call from Jackson telling me how elated he was that I was going to join the trip," Murray said. He said there was no commitment yet, but indicated how impressed he was about the request.

"Michael Jackson asked me to be on his team. I was talking to Michael Jackson himself," Murray said.

Asked about the arrangements that were made, he said, "I was of the opinion he would be my employer directly." He said he later learned that the promoter of Jackson's concerts, AEG Live, would be paying his salary.

Testimony showed that Jackson had agreed to pay Murray $150,000 a month.

In his testimony preceding the tape, Smith said, the case had not been classified as a homicide before Murray talked and was being treated as a death investigation, possibly from natural causes.

More than seven months after Murray's interview with detectives, he was charged with involuntary homicide.