I found a bug in OPL 8: The Game list (at least HDD) doesn't list games with certain characters. Maybe a code page problem. For example:
Original Game Name:
SingStar Après-Ski Party
OPL 8 Game Name:
Maybe other characters have this problem, too. Maybe chars like ä,â,é etc.
I think this is a bug because WINHIIP, the program which I used to fill the HDD, displays those game names properly.