CAIRO — An Egyptian court said Thursday that three jailed journalists must pay $170,000 for a copy of the video footage that prosecutors say shows the defendants fabricated news reports to foment unrest.

The price charged for access to the evidence is the latest in a string of irregularities in the case. The three journalists have been jailed since December on charges that they formed an Islamist cell and conspired with the Muslim Brotherhood to broadcast false images of civil strife in Egypt. All three journalists worked for the English-language arm of the Qatar-based Al Jazeera news channel, which Egypt’s new military-backed government considers biased in favor of its Islamist opposition.

Prosecutors have not yet publicly disclosed any of the allegedly false news reports. Nor have they shown any evidence that reports were fabricated. Images of unrest on Egyptian streets and campuses were easier to find than to fabricate in the weeks before the journalists’ arrests.