The report by mizanonline.Ir, a news outlet of the hard-line Iranian judiciary, is quoting Tehran prosecutor Abbas Jafari Dowlatabadi today as saying that the eight were arrested last week in Tehran.
They were not identified by name.
The report says the videos they produced were broadcast on an anti-revolutionary TV channel - a likely reference to a foreign-based channel in Farsi.
Dowlatabadi says a special court for media and culture will review the case and consider raising charges against the eight.
There were no details on the content of the videos. In Iran, it's considered "obscene" and un-Islamic if a woman is filmed singing without a headscarf or together with a man.