Some game isn't Person voice

[johnny8100]

???PSX 1.9 Quite good, but still exist some problem, Usually test£¬Some games have the backing music but isn't Person voice(Once can of PSX1.5orPSX1.4)
For example: "SLPM-86355 : Tokimeki Memorial 2 [Disc1of5]
SLPM-86356 : Tokimeki Memorial 2 [Disc2of5]
SLPM-86357 : Tokimeki Memorial 2 [Disc3of5]
SLPM-86358 : Tokimeki Memorial 2 [Disc4of5]
SLPM-86359 : Tokimeki Memorial 2 [Disc5of5]"
(This can't circulate in PSX1.6,1.5...)

"SLPM-86881 : Tokimeki Memorial 2 SubStories Vol.3 -Memories Ringing on [Disc1of2]
SLPM-87217 : Tokimeki Memorial 2 SubStories Vol.3 - Memories Ringing on [Disc1of2] [Konami Best]
SLPM-87312 : Tokimeki Memorial 2 SubStories Vol.3 - Memories Ringing on [Disc1of2] [PSone Books]
SLPM-86882 : Tokimeki Memorial 2 SubStories Vol.3 - Memories Ringing on [Disc2of2]
SLPM-87218 : Tokimeki Memorial 2 SubStories Vol.3 - Memories Ringing on [Disc2of2] [Konami Best]
SLPM-87313 : Tokimeki Memorial 2 SubStories Vol.3 - Memories Ringing on [Disc2of2] [PSone Books]"
(Once can of PSX1.5orPSX1.4)