What steps will reproduce the problem? 1. after installation 2. start up 1st game - Taiko no Tatsujin: Portable 3. and blank screen + no respond

What is the expected output? What do you see instead?

What version of the product are you using? On what operating system? 6.39 PRO B6

Please provide any additional information below.

Other game is no problem so far.

Check if the game is patched and if it is in .CSO format uncompress it to .ISO with PSPGamebrowser or another PSP Games Compresor/Decompresor

The game is in *.ISO, and I got it working before on the M33 something -6

But I just wonder.. if the file name will make it not working?? Because it's in Japanese..

Please try with the latest pro cfw version and keep up informed.

Try the latest PRO CFW. If you used M33-Prometheus 6 then the prometheus infected ISO might not work on PRO. Get a clean unmodified ISO first and try. Disable your game plugins.

"But I just wonder.. if the file name will make it not working?? Because it's in Japanese.." <-- non-latin names should be supported

No answer for 1 year, issue closed