HELP!! 2 old games not working with PS-X Change 2

Hi everybody

I'm a newbie here and don't know much about Action Replay codes.

The games are original (jpn versions) and don't work with a Pal PS-X Change 2 on a US PSone:
_In The Hunt = no music
_Ridge Racer Type 4 bonus disc (the bonus disc only) = no start

If anyone knows the solution, thanks to let me know