AC3 and MPA on same DVD?

[Caorn]

Hi all, I am using DVD-Lab and I am trying to put two movies on the same DVD. One has AC3 sound and one has MPA sound. When I compile DVD-Lab gives me a warning and when I am playing the DVD in my player the AC3 soundtrack is working but the MPA isn't. I transformed my AC3 to MPA and everything is working fine, but my problem is that I lost 5:1 sound

I am pretty sure that the main problem is that DVD-Lab put my two movies in the same VOB set and it doesn't like the audio mix. Is there a way where I can create two set of VOB, so I could have AC3 in one VOB and MPA is the other? something like Movie 1 in VTS_01_1.VOB set and Movie 2 in VTS_02_1.VOB set?

Thanks in advance.

[mastersmurfie]

why not convert the MPA to AC3 with BeSweet? that way, you could have AC3 on the whole thing...

just a thought...

[BJ_M]

make a seperate title for each movie -- each can have its own type of audio track ..

also how you can mix 16:9 and 4:3 correctly on the same disk ..

[Caorn]

Master: I tried converting MPA to AC3 with BeSweet, no luck that way, I don't know why. Could it be because one of the audio track is stereo and the other is 5:1?

BJ_M: What you mean exactly? How can I do that in DVD-Lab? Or do I have to use another authoring program?

Thank you

[BJ_M]

doesn't DVD-Lab do multiple titles? if not - well authoring programs like Maestro do , but i would think others do as well ..

yes - the audio has to be the same per title (either 2ch or whatever) ..

but as a last resort -- convert your 2ch mps to 5:1 ac3 ... only the front L + R channels need to contain audio data ...

[rogue203]

I had a similar problem as well, when I converted my mpa file to AC3 I still had a problem on one player because the mpa->ac3 file was encoded at 256 and my other ac3 was 384. I converted the mpa to ac3/384 using besweet and my disk works great.
Don't know if the ac3 files have to be the same bit rate in the same title set but works for me.

[BJ_M]

in theory -- no they dont have to be the same bit rate ... but most authoring apps will not mux a stream with different bit rate audio .. but you can join them by yourself and then import the whole stream into a authoring app and that will work ..