Source: http://www.siliconera.com/2010/06/09/dissidia-final-fantasy-downloaded-illegally-over-5-million-times/
CESA, short for Computer Entertainment Supplier’s Association, has been tracking illegal downloads of top selling handheld games. Out of all the titles – DS and PSP – Dissidia: Final Fantasy was downloaded the most.
According to their data, the PSP game was downloaded 5,281,223 times. CESA estimates a loss of 30,631,093,400 yen ($335 million) in sales. The dollar amount is questionable due to used game sales, price drops, and people who would never have purchased Dissidia anyway. In spite of those factors that number is still staggering.
These are some of the other top pirated PSP games developed in Japan.
Phantasy Star Portable 2 –
4,665,510 downloads worth 22,394 million yen ($245 million)
Dynasty Warriors Strikeforce –
2,072,942 downloads worth 9,950 million yen ($109 million)
Monster Hunter Freedom Unite –
1,820,282 downloads worth 8,322 million yen ($91 million)
Crisis Core: Final Fantasy VII –
1,223,881 downloads worth 7,098 million yen ($77 million)
Mobile Suit Gundam: Gundam vs. Gundam Next Plus –
1,1187,341 downloads worth 7,100 million yen ($77 million)
Tales of the World Radiant Mythology 2 –
1,131,319 downloads worth 5,603 million yen ($61 million)
Not all top selling PSP games were heavily pirated. Konami’s Power Pros Portable 3 is the 12th best selling game and it was only downloaded 4,358 times. SD Gundam G Generation Portable, the 20th title in Japan, also had a comparatively low piracy rate with only 65,112 downloads.
It appears PSP piracy increased greatly when you compare Phantasy Star Portable and Phantasy Star Portable 2. Phantasy Star Portable, released in 2008, only has 665,320 downloads, a fraction of the 4.6 million downloads of the 2009 sequel.
CESA’s figures the top 20 selling games in Japan were downloaded 23,249,418 and cost the industry 118 billion in damages.
Those numbers really put tears on my eyes. 
