problem with SRW

[kougaiji]

i open the fighting sreen, but game stucked when system fail to read out the voices of pilots...is this a common problem or, did i get a bad disc?
the game is super robot war...

[kougaiji]

last night i checked it out, no problem with the disc, play well on PS, so it's a problem of the emulation, what do you suggest? i'm already using iso...the problem is still there~