Death Rides a Horse Wild East audio question

I just bought a copy and there is a weird sound every few minutes, its like a click or a pop. It happens several times but to give 2 examples its at 15:44 and 17:45. Is this normal? or do I have a bad disc? Help would be greatly appreciated. Thanks.

They probably took the sound from an alternative source and had to adjust it, this might lead to repeated clicks. I have the MGM (European disc), I’ll check tonight if there are any clicks or plops, so far I haven’t noticed them. They might have used the audio form that PAL-disc (I guess the WE disc is NTSC)

WE uses often Pal sources for their discs.

Well, that is the reason, I guess