The elections body said last week it had discovered discrepancies involving around 150,000 votes but the number was not enough to affect the overall outcome of the presidential and vice presidential elections.
The House of Representatives' panel on suffrage and electoral reforms will start public hearings on Wednesday to assess the credibility of the automated vote count, the country's first, and evaluate evidence and claims of vote irregularities.
Prospero Nograles, outgoing speaker of the 264-member House of Representatives who lost a bid to become mayor of Davao City in the south, said the automation was not fool-proof, with several reports of pre-programming of tallies in memory cards used for the vote counting machines.
"What is even more disturbing is the recall of 76,000 memory cards just four days before the elections when there is no longer time to examine them," Nograles told reporters.
Sen. Benigno Aquino, son of the country's revered democracy icon Corazon "Cory" Aquino, is expected to be officially proclaimed as winner of the presidential race in coming weeks as he maintains a commanding lead of more than 5 million votes over his nearest rival, former president Joseph Estrada, in unofficial tallies by election watchdog PPCRV.
Aquino is on course to grab the biggest mandate so far in any election since his mother was swept to power in 1986 through a bloodless, popular uprising that ousted the late strongman Ferdinand Marcos. The unofficial PPCRV tally as of Tuesday show Aquino cornering nearly 42 percent of the vote, topping the record set by Estrada who won with 40 percent in 1998.
The relatively smooth election process and the emergence of a clear winner with market-friendly credentials is seen as a positive development for improving long-term investor sentiment on the Philippines, although a messy transition period could keep sentiment cautious.
Three other losing presidential candidates have called for an audit of poll results. They claim about 8 million Filipinos failed to cast their ballots due to technical glitches and long queues on election day, and claimed high turnout of 95 to 100 percent in some precincts in the capital and southern Mindanao island indicated possible padding of results.
