"There is a piracy problem on PSP," the UK PlayStation boss stated.
"We know about it, we know how it's done. It sometimes fuels the growth of hardware sales, but on balance we are not happy about it," he said.
Reeves later added that Sony is soon to unveil a new clampdown on piracy, which some took to refer to today's slightly disappointing Firmware 4.00 update.
With the opinion of many being that piracy is killing the PSP's development as a gaming format, an announcement of Sony's plans in this department can't come soon enough.