Heberekes Popoito

I downloaded this puzzle game from Lockecole's FTP site and it was regioned as E for Europe (?). Anyway, I used Satconv.exe to change it to U but it doesn't seem to boot. Is this a PAL only game? Was this game released in Europe? Please help, I'd love to play this.
It was released in Europe.

FWIW the Japanese version is called "Hebereke Popoon" (or something slightly different to Popoito).

I used CDRwin to burn it this time around and didn't convert the MP3's to WAV via MP32WAV and it worked. Thanks!