Problems with audio sync with MainConcept

[pl0p]

wonder if any1 can help..
on some VCDs.. after i use mainconcept to encode em to dvd mpg`s the audio will drop out of sync like half way thro.. only happens with a few movies.
1 or 2 have even dropped outta sync half way thro. (a tiny bit) then come back into sync..
any1 have any idea?

[garvey100]

Why not save yourself the time and effort of re encoding. VCD video is compatible with standalone dvd players. When you extract files using isobuster, rename dat files 1.mpg, 2.mpg etc. Then enter files directly into tmpgenc dvd author and author as normal. The audio will be changed to 48 000 and more times than not there will be no sync issues unless the original is dodgy. Hey presto, in 20-25 mins fully compliant dvd vobs!!!

[teegee420]

I completely agree with garvey100, however if you insist on converting to mpeg-2, try disabling the mpeg import module in Options>Import Modules.

[pl0p]

lol thanx alot guys.. ill try both ways.
didnt realise i could just keep em as VCDs.
i assume SVCD will work aswell right?
heh

[jtommyj]

No, SVCD will NOT work because 480x480 isn't a valid DVD-Compliant resolution like 352x240 is, along with 352x480, 704x480 and 720x480.

[pl0p]

oh.. right.. i just found that out actually when i tried it.
so.. how do i go about converting an SVCD so it is compliant?
thanx again

[mats.hogberg]

how do i go about converting an SVCD so it is compliant?

svcd2dvdmpg

/Mats

[maureen]

Sorry to but in but i also have been re-encoding to dvd.But ive just tried to take a mpg to dvd author and i get a gop warning.But i also get the option of ignoring it but it will make an uncomplying dvd.
Have i done something wron or shall i ignore the warning?.

[jtommyj]

I would try to ignore it and use a RW to test.
Also, what did you use to encode the MPEG-2 file with that it gave you an illegal GOP AND what program gave you the illegal GOP warning ?

[maureen]

I'll get back to you in half an hour.I thought id give it one more go while i wait for replys and its authoring this time.

[pl0p]

oki.. i tried that SVCD2DVDMPG..
worked fine
but then when i tried to author the output file with TMPGenc dvd it said "GOP file to long"
i ignored that and did it anywhere
tested it with WinDVD.. and it crashed.. heh

[maureen]

Ive just done a movie without re-encoding it to dvd.Im over the moon.It took 20 minutes to author and 15 mins to burn.Before i would re-encode to dvd 3 hrs author 35 mins shrink 30 mins burn 20 mins.From 4hrs30 min to 35 mins.Im going to try some others now as i had a list to do.

[garvey100]

Hi maureen
pleased you found that trick helpful....it saves a whole loada time.

Pl0p, you can use the program these guys said or once again, you can extract with isobuster naming files 1.mpg, 2.mpg etc. Once the files are extracted, use a useful little program called dvd patcher and patch to 720. This fools tmpgenc dvd author into accepting the files. After the vobs are complete then patch ALL files back to 480. Easy to do!!

And another thing, ignoring warnings in tmpgenc dvd author generally doesnt cause a problem.

[maureen]

So i can now do all my vcd's and svcd's but do i still have to re-encode all movies which are avi,divx and xvid's?.If i have to still re-encode these type of movies do i now code them to vcd or dvd?.I did a quick test on a movie and to code it to vcd will take about 35 mins but to dvd about 1hr 15 min.I suppose because they are d/loaded movie files i might not notice that much difference in quality?.

[garvey100]

I find divx, avi, xvid very hit and miss. There are times when I can bang the file into tmpgenc or main concept and it will come out fine. Other times, it will come out with the audio way out of sync. What you have to remember is that as far as I know, tmpgenc plus is still not compatible with ac3 sound so you will need to sort that using virtual dub or something of that type. You must also have the correct codecs. I had an xvid codec on my pc that turned the picture upside down. I uninstalled it and the picture was the right way up but main concept and tmpgenc wouldnt accept the files as the xvid codec had gone. I then downloaded another codec and by chance came across an xvid codec that works perfectly and I now do perfect in sync converts using main concept.
What I am trying to say is that yes, you have to encde with these. If you are lazy like me and cant be bothered to demux and mux back the audio after, then finding a dcent codec and using main concept might be the best route. Hope that helps........think I confused myself there!

[pl0p]

1 more thing.. im using svcd2dvdmpg fine now..
but.. wen i convert SVCDs using svcd2dvdmpg i still cant author them with tmpgenc dvd cuz it says 480X480 unsupported of summin.
so i still hafta encode the movie to VCD neway.. ??

[mats.hogberg]

Sounds odd - 'cause I've done exactly the same thing - patching resolution and resampling audio with svcd2dvdmpg, then author with TMPGEnc DVD Author. Try some other autoring app, like IfoEdit?

/Mats

[pl0p]

hmm.. weird..
is that with SVCD or VCD?
maybe ill try patching to 720.
1 other thing.. ive noticed with tmpgnec dvd it takes a pretty long time 2 author a patch mpg.. where it only takes me 10mins to author a proper dvd mpg.. is that normal?

[mats.hogberg]

I've only done SVCD to DVD. And yes, 720 was what I used. (As that's The DVD resolution, I thought that'd be pretty obvious ). I haven't used TDA enough to have noticed any differences depending on source material.

/Mats

[garvey100]

As I said previously, to get tmpgenc to accept svcd, simply patch headers to 720. Most dvd players need you to patch vobs back to 480 afterwards, otherwise you get a screwed up picture.
You dont need to convert ANYTHING using svcd2dvdmpg. Just patch the mpg files using dvd patcher to 720. I ususally patch back to 480 using svcd2dvdmpg as it has an option specifically designed for this. Just enter the video_ts file into svcd-dvdmpg and press 480.......it will ask you if you want to repatch vobs........select all files and click yes. Works for me.

[mats.hogberg]

I ususally patch back to 480

So, what you're saying is that the only reason for using svcd2dvdmpg is to make the mpg accepted by authoring applications, and that DVD players generally are less inclined to accept a patched "off specs" mpg than an unpatched "off specs" mpg?

/Mats

[Panash]

Interestingly the Chinese Super Video CD (CVCD) at 352 by 576 (Half D1), is a valid DVD resolution. (if my memory serves me correctly).

PN

[mats.hogberg]

352 by 576 (Half D1), is a valid DVD resolution.

Your memory serves you well.

/Mats

[garvey100]

I ususally patch back to 480

So, what you're saying is that the only reason for using svcd2dvdmpg is to make the mpg accepted by authoring applications, and that DVD players generally are less inclined to accept a patched "off specs" mpg than an unpatched "off specs" mpg?

/Mats

Essentially yes. If you notice, when you patch to 720 and enter into tmpgenc dvd author, there is a green bar running down the right. If you play a copy directly after producing vobs and burning without patching back, then in essence the green bar is there still so what you end up with is a 3/4 correct picture and a mess down the right side. Patching back to 480 resets the picture and players play it fine.

[mats.hogberg]

then in essence the green bar is there still so what you end up with is a 3/4 correct picture and a mess down the right side. Patching back to 480 resets the picture and players play it fine.

Actually, I noticed TMPGEnc DVD Author did this when creating chapter thumbs. The actual image is to the left, occupying 2/3 (=480/720) of the thumb. However, on my DVD player, it plays nicely without the "mess" down the right side, and the image is "full screen". It'd be nice to know what's the most common behaviour when it comes to playing a DVD from a patched m2v...

/Mats

[garvey100]

You are definitely right that with some dvd players you do not have to patch back. It would be interesting to know why with some you have to and some you don't.