MakeMKV corrupts AC3 Track on several DVD's

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italospain
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Joined: Fri Dec 17, 2010 11:06 am

MakeMKV corrupts AC3 Track on several DVD's

#1 Post by italospain » Fri Dec 17, 2010 12:15 pm

for example : Klute 1971 NTSC, The Holy Mountain NTSC, The Medusa Touch PAL.

The Conversion works without errors, but if you Playback them you got Audio Stuttering. If you open the Vob's with MKVMerge (MKVToolnix) the extraction of the AC3 Track is OK (No stuttering).

Thanks for this nice Software but I can only use it for Video and Subtitles. For the Audio Tracks I have to use MKVMerge to be shure not fuck up the Audio Tracks.

setarip_old
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Joined: Wed Dec 09, 2009 1:31 pm

Re: MakeMKV corrupts AC3 Track on several DVD's

#2 Post by setarip_old » Fri Dec 17, 2010 7:19 pm

Hi!

1) MakeMKV doesn't alter .AC3 audiostreams in any way. Your playback performance regarding audio may have to do with your choice of players and/or the fact that some of your .MKVs contain PAL format video, while others contain NTSC format.

2) Your profanity is inappropriate (and unnecessary) at the MakeMKV forums...



italospain
Posts: 3
Joined: Fri Dec 17, 2010 11:06 am

Re: MakeMKV corrupts AC3 Track on several DVD's

#3 Post by italospain » Fri Dec 17, 2010 8:50 pm

sorry man english is not my native language

the ac3 tracks are really corrupted (bad frames reported by BeSliced)

it has nothing to do with pal - ntsc - player or something else. Again with mkvmerge there is no problem to extract the ac3 tracks without errors.

My thanks was honestly and without profanity.

setarip_old
Posts: 2136
Joined: Wed Dec 09, 2009 1:31 pm

Re: MakeMKV corrupts AC3 Track on several DVD's

#4 Post by setarip_old » Fri Dec 17, 2010 10:37 pm

Perhaps the following quote from a review of "Klute" in the DVD Journal, holds the key to the problem you've experienced:
Warner's DVD edition of Klute comes in a stripped-down package, but with an excellent anamorphic transfer (2.35:1). Gordon's Willis's cinematography shines in a virtually spotless print. The audio remains the Dolby 1.0 mono from the even more stripped-down 1994 Laserdisc


And from a review of "The Holy Mountain"
Some of the more high-end frequencies suffer from a slight distortion


And from a description of the PAL version of "The Medusa Touch" at Amazon.com:
"Language: English (Dolby Digital 2.0 Mono)"





italospain
Posts: 3
Joined: Fri Dec 17, 2010 11:06 am

Re: MakeMKV corrupts AC3 Track on several DVD's

#5 Post by italospain » Sat Dec 18, 2010 10:28 am

thanks setarip_old for trying to help.
Yes its true the sound quality of the examples is really poor.
But it doesnt explain the periodicaly sound dropouts.
I have converted over hundred DVD's with MakeMKV and 90 % of the generated MKV's are perfect. For the last 10% I had to use MKVMerge to get rid of the sound dropouts.
Perhaps it is the same error here : http://www.makemkv.com/forum2/viewtopic.php?f=1&t=618

setarip_old
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Joined: Wed Dec 09, 2009 1:31 pm

Re: MakeMKV corrupts AC3 Track on several DVD's

#6 Post by setarip_old » Sat Dec 18, 2010 6:13 pm

@italospain

What I was trying to highlight is the fact that each of the three DVDs are noted to have other-than-routine audiostreams - that either MakeMKV or your player(s) are having difficulty with.

I'm sure "mike admin" will be able to provide more and better insight...




mike admin
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Re: MakeMKV corrupts AC3 Track on several DVD's

#7 Post by mike admin » Sun Dec 19, 2010 8:52 am

italospain wrote:for example : Klute 1971 NTSC, The Holy Mountain NTSC, The Medusa Touch PAL.

The Conversion works without errors, but if you Playback them you got Audio Stuttering. If you open the Vob's with MKVMerge (MKVToolnix) the extraction of the AC3 Track is OK (No stuttering).

Thanks for this nice Software but I can only use it for Video and Subtitles. For the Audio Tracks I have to use MKVMerge to be shure not fuck up the Audio Tracks.
Please see PM.

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