WASHINGTON — Anti-abortion activists have given Congress lengthy, unedited videos they recorded showing Planned Parenthood officials discussing their retrieval of fetal tissue, a House committee chairman said Wednesday.

The House Oversight and Government Reform Committee subpoenaed the recordings last month as part of an investigation into whether Planned Parenthood has illegally sold tissue from aborted fetuses for profit. The videos could help resolve conflicting claims about whether shorter versions that abortion activists began posting online this summer were misleadingly edited.

The chairman, Rep. Jason Chaffetz, R-Utah, said he has set up a viewing room where lawmakers and aides can see the footage. He said the videos will not be released to the public now “to ensure the safety and security of all individuals recorded.”

Chaffetz said the footage contains nearly 800 gigabytes of data, which he said means it will take investigators “significant time to evaluate.” That amount of data is likely equivalent to several dozen DVDs worth of movies.

The Center for Medical Progress, a small group of abortion foes who secretly recorded the conversations, says the videos show Planned Parenthood has broken the law by profiting from the tissue sales.

In an email Wednesday, the center’s founder, David Daleiden, said it had turned over “all the raw undercover recordings in their original format” to the committee. He said the videos provided evidence of a criminal conspiracy “to sell baby parts for profit.”

Planned Parenthood says it did nothing illegal and only accepted payments covering the costs of retrieving the tissue, which it provides to medical researchers. The group announced Tuesday that it would no longer charge for the tissue.

Planned Parenthood says videos that the activists have previously released publicly were deceptively edited to distort the conversations. On Wednesday, it said it doubted that Daleiden had given Congress full, unedited footage, saying he has “lied for months” about the videos and has previously said he has several terabytes of footage – a far larger amount.

“This is a fraud, intended to deceive the public in order to advance an extreme political agenda to ban safe and legal abortion in this country,” said Planned Parenthood spokesman Eric Ferrero.

Three other congressional committees are also investigating Planned Parenthood, and the Republican-run House has created a special panel to conduct a probe.