Is there a trick to joining SVCDS with tmpgenc?

[branch]

I've tried joining two svcds. When tmpgenc is finished i try playing the new file, it seems ok (though i suspect the sound is a frame or two behind) up til the end of the first svcd, then suddenly the sound jumps several seconds??
ie, the sound of svcd2 starts about 20 second before svcd1 has ended... any clues?

[lizzoqops]

Svcds have this tendency when you join them. If you do a search for "out of sync" you'll find some solutions that may or may not work.

Have you tried burning the joined file? Sometimes mine are out of sync on my computer, but play fine on my standalone.

Also, have you tried to burn the originals as separate tracks?

Lizzo

[Rico49]

To be able to merge svcd mpeg files in TMpegEnc and keep video and audio in sync, the mpeg files need to be encoded at either a true 29.97 fps or 25 fps pal. You will not have much success if they were encoded at 23 fps with a 3:2 pulldown when played back, especially if you have 3 or 4 svcd to merge. Additionally, DVD authoring programs will not display the correct length of an mpeg file encoded at 23 fps and will have problems creating chapter points. Don't know why this is--just know from experience/experimentation. What I end up having to do is reencode each svcd as a video movie at 29.97 fps and then merge. If anyone knows or has a solution other than reencoding, please advise.

Rico49

[txpharoah]

Reboot. Do not multitask, get offline, and close taskbar/system tray programs. They are interrupting you most likely.

If the issues happens still after you try this, then you've got bigger issues.

Maybe try to demux audio/video join audio in another program like Sound Forge. Then take rejoin video and rejoined audio with TMPGEnc, and multiplex. Sometimes, it only works like that. It most likely came from a bad SVCD file anyway, not your fault.

[Rico49]

None of the above will work--been there done that--and multitasking and merging svcd's should not be a problem as long as the mpeg file was encoded at a true 29.97 fps or 25 fps pal video movie. The problem lies with an svcd encoded as 23 fps film movie with pulldown. Take a 23 fps film movie mpeg and load it into TMPEGEnc using the Wizard for reencoding until you see the length in play time of the svcd mpeg file. If you load this same svcd mpeg file into Main Concept MPEG Encoder, the video and audio info will not match and the reencode will fail. Load this same svcd mpeg file into Ulead DVD Workshop and it too will not report the correct length of the mpeg. Create chapter points in Workshop and you'll find that your selected chapter point will not match the one that you inserted. With Ulead DVDMF2, the DVD folder creation will stop with an ugly message about your chapter points. Now take your 23 fps svcd mpegs, reencode them as 29.97 fps "video" as opposed to "film" and you will find that they will merge flawlessly keeping everything in sync. Granted with each reencode you lose some quality, but it will be negligeable.

Rico49

[branch]

Well, that didn't help Of coruse knowing you are not alone is a bit of a comfort


Rico49, it should be 29.97 though.

txpharoah running other programs should have nothing to do with this, certainly not for remuxing. And for playing, if it was causing it to jerk it should be all the time, not just at the joining point.

Weird, but since i don't really have any experience with other svcd cutters i don't know if its a general problem (for reasons unknown) or just tmpgenc.

However I did try (knowing it wasn't just that simple to use HJSplit ( http://www.freebyte.com/hjsplit/ ) to join them

That plays fine on the DVD, but the computer chokes