I have an old DVD. My goal is to rip the VOB files from the old dvd, create a new navigation system, then burn to a new DVD.
My issue is that when I view the VOB files on a pc, using VLC player- there are interlaced lines everywhere (changing the deinterlace settings doesnt seem to be helping but I might be doing something wrong). When I view the file on a mac with VLC player- there are no interlaced lines. The issue is that the software I am using is only available on PC. When I burn the dvd then- view it on my mac the interlaced lines are burned in permanently. Is there any work around for this? I've attached an example of a transition frame. On PC I get this half/half scene with interlaced lines everywhere. On my mac this frame doesnt exist. Any help would be amazing!
[Attachment 57706 - Click to enlarge]
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This is probably because the media players are deinterlacing (or not) on the fly.
The existing mpeg-2 encoded DVD (VOB) files should be transferred to the new DVD as-is
to maintain their quality, they should not be deinterlaced -
Can you cut a small sample from the DVD for upload here so we can have a look?
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DGIndex tells you how a VOB is encoded without having access to the IFO. It's the progressive flag that's set or not set in the MPEG2 encoder that determines how it's encoded. However, as I understand it, the IFO can override that flag. To complicate things even more, some of the players get the info from the IFO, some from the VOBs. In almost all cases, though, the two are in agreement.
Do you suspect this might be one of the times the two aren't in agreement? Or maybe you're thinking the interlaced VOBs were encoded as progressive? -
VLC (and many other players) can be set to deinterlace all video:
[Attachment 57721 - Click to enlarge]
If you have that set it's not surprising it would play the video without comb artifacts.
Also, some programs may only look at the first flag to determine whether a video is interlaced or progressive. Others may look at the flags throughout the video. And if there is junk at the start of a VOB (remember, the IFO can tell the DVD player to skip over that junk) different players have different strategies to look (or not) further into the file to figure out what type of container/codecs it is. -
It doesnt matter if I turn that deinterlaced setting off, auto, on. The same vob file is playing interlaced on a PC using VLC player and deinterlaced on a mac using VLC player. I want to rip the file and repurpose it in deinterlaced format. I'm ripping the vob files off an old dvd, and burning it onto a blank dvd with a new menu with DVDStyler (which only works on mac). But when the files are burnt onto the new dvd via dvdstyler the video play back is deinterlaced regardless if i play it on a mac or pc, it's just always deinterlaced. Please just let me know if any of that wasn't clear. Super frustrating, really appreciate all the help!
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The vob file is automatically split up in three pieces. The small piece being 700mb, the max it says I can upload is 500mb. I dont want to export a small piece out into some other format because maybe that will change things and it wont be comparing apples to apples.
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It sounds as if it just needs an IVTC and not a deinterlace. However, to be sure a small sample is needed. Cut a VOB using DGIndex as suggested by jagabo. Open a VOB in DGIndex, use the [ and ] buttons to isolate a small section with steady movement (a panning shot is ideal) and then File->Save Project and Demux Video. Upload the resulting M2V file. It doesn't get reencoded or changed in any way. 10 seconds or so will be plenty.
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