Golf Shiyouyo 1 SoulDC: is this game protected?

[weezee]

Pal Patcher has found a couple of pal protection strings, but the
game freezes after a few seconds while playing the intro FMV.
Same thing on both JAP and PAL DC with and without RGB cable.
If I insert VMU, the game resets once instead of freezing.

[Megalexxx]

Send me your 1st_read.bin
Megalexxx********fr