Real Madrid star Cristiano Ronaldo admitted Tuesday he felt no satisfaction despite winning a record fourth Golden Boot as the top scorer in Europe's domestic leagues last season.

"It's a special moment," said the 30-year-old Portuguese striker during a ceremony in the Spanish capital. "But I'm not satisfied, I always want more.

"I know I'm the only one to have won four Boots but I want more, I want the fifth and sixth if possible."

Ronaldo scored 48 goals in 35 Spanish league games last season to claim his third Golden Boot with Real Madrid after 2011 and 2014. He also won one with Manchester United in 2008. No other player has won four.

His Argentinian rival Lionel Messi, who scored 43 goals with Barcelona to finish second top scorer last season, has won the award three times in 2010, 2012, 2013.

Messi however is the only player to win European football's top individual award, the Ballon d'Or, four times, with Ronaldo winning three times.

Ronaldo won the Ballon d'Or title for the top European footballer for the past two years but Messi guided Barcelona to the triple of La Liga, Copa Del Rey and Champions league titles.

"Obviously (winning a new Golden Boot) implies also winning things collectively, trophies with the team," said Ronaldo, whose side failed to win a major trophy last season.

"Real Madrid is a team that must win titles every year. This season it's the same, we want to win the championship, the Champions League if possible, and the Cup."

Two weeks ago Ronaldo scored his 500th career goal and then equalled Raul's club record tally of 323 goals for Real Madrid.