Convert DVD Resolution from 352X480 to 720X480

[kpoman]

I had captured some VHS video at 352X480 (MPEG2) resolution and converted it to DVD using TMPGEnc DVD Author. Now, I would like to convert that DVD to 720X480 resolution. What would be the easiest way since the files are all in .VOB format? Thanks.

[fritzi93]

Why would you want to do that? It's already a valid DVD resolution, and upsizing won't improve the quality. Not criticizing, just wondering...

[ZippyP.]

Why? You will be going to a lot of trouble for something that will only make your video worse. You will have to re-encode and upsizing resolution is normally not recommended, both of these will reduce quality and are good reasons to leave the video alone.

Sorry to repeat but fritzi beat me. btw, I am criticizing.

[Cornucopia]

Don't Do It!

Look, you already have it as 1/2 D1. This is one of the valid, DVD-Spec resolutions. IOW, it'll work on any DVD player as is. Maybe some authoring apps won't like it, but when you use one that does (which it sounds like Tmpgenc DVDAuthor does), you're fine.

What do you want to do now, increase the resolution? You can't. When you digitized/encoded the file, you set its resolution. You might be able to re-sample it to 720x480, but every other horizontal pixel will just be a blurry average of its next door neighbors. I'd leave it as is.

Besides, another generation of compression is just going to add to the grunge artifacts, which is precisely what you're wanting to avoid in thinking that full D1 is better/sharper/smoother than 1/2 D1.

Of course, if you're determined to go ahead with it, try a combination of VirtualDubMod with TMPGEnc, or some other decoder/resizer/reencoder. You might also want to try a transcoder that can resize. Not sure which ones can (don't used them much), but I believe ReMPEG is one.

HTH,
Scott

[CaseyComb]

Well, I'll just say what everyone is afraid to: THAT IS A STUPID F**KING IDEA. There is absolutely no point whatsoever to resize that file. But if you must forge ahead in idiocy you simply need to re-encode it with the 'ahem' PREFERRED resolution. Try TMPGenc.

[kpoman]

@All of you, especially CaseyComb:

First, I want to clarify what I'm trying to do, then secondly, I will rip all of you.

I am creating a DVD that will include 5 different Baby Einstein episodes. Each DVD is about 1 gig in size so there will be very little squeezing to do when I’m done. One of the episodes was a VHS tape so I had captured that in 352X480, however, in order to include this episode along with the others (all in 720X480) Tmpgenc DVD Author requires ALL of the episodes to be the same resolution.

NOW, you guys are a bunch of worthless ******* idiots who can't offer help to someone who has a valid question. This website is entitled videoHELP, NOT videoBASH! Please don’t waste my time with your ******* opinions. I need help, not worthless comments on how stupid my ideas are. So to all of you who responded....I figured it out on my own, so go **** yourselves.

[Baldrick]

create a new track/title in tmpgenc dvd author and you can mix different resolutions.

[baker]

I used to be very big into this forum a LONG time ago, this is the first post in ages but I just have to say that this paragraph:

NOW, you guys are a bunch of worthless ******* idiots who can't offer help to someone who has a valid question. This website is entitled videoHELP, NOT videoBASH! Please don’t waste my time with your ******* opinions. I need help, not worthless comments on how stupid my ideas are. So to all of you who responded....I figured it out on my own, so go **** yourselves.

Is a disgrace towards baldrick and anyone else who spends there time trying to help ppl on this forum and was totally uncalled for.

Baker

[CaseyComb]

NOW, you guys are a bunch of worthless ******* idiots who can't offer help to someone who has a valid question. This website is entitled videoHELP, NOT videoBASH! Please don’t waste my time with your ******* opinions. I need help, not worthless comments on how stupid my ideas are. So to all of you who responded....I figured it out on my own, so go **** yourselves.

First, You didn't specify what you wanted to accomplish. So your vague question seemed rather silly. So most of the people that replied were in essence trying to "help" you by stopping you from a process that was unecessary. If you had stated your intentinons from the beginning you would have gotten a response that was more to your liking.

Second, I did answer your question. albeit not the way you wanted. It was answered regardless.

[kpoman]

Thanks Baldrick

[ZippyP.]

Thanks Baldrick

What, no apology for the rest of us?

[Sully]

If 352x480 is a valid DVD format, why do some players not accept it?

I have a few DVD's that were VHS conversions at 352x480. I didn't do the conversion (received the DVD as a trade & traded it myself to others), but it is an actual mpeg2 NTSC stream. I'm into trading Kiss DVD's & have received a few complaints from different people that they couldn't play the DVD on thier player. Plays fine on mine, but I'd still rather have a "more compliant" resolution.

Shouldn't it be possible without too much pixalation (using CCE) to convert to 720x480 if the bitrate can be made high enough to still fit on a DVD? The "original" DVD is only about 2+ GB full, so in theory, I'd be doubling the size, resolution & actual file size, but should still keep pretty closely the same quality as was started with.

Would using a filter of some kind help? It'd slow things up a bit, but that's OK. I usually avg. around 2.6x encoding speed so I can take it if it takes a little longer to convert.

I didn't want to start a new thread for a topic already started, so I'm hoping for a reply, regardless of all the fun you guys are having so far.

[ZippyP.]

If 352x480 is a valid DVD format, why do some players not accept it?

You're assuming it's the resolution that makes it less compatible. I doubt it. Could be they don't like DVD + or - R, or the brand of disk, or because it's PAL or NTSC or several other things. I suppose you could convert it to full dvd and see if it makes a difference. I'd really like to know if it does make it acceptable to all players. I'm skeptical b/c 352x480 is completely DVD compliant.

[Sully]

ZippyP. - No, I wasn't just assuming it's the resolution. Like I said, I'm into trading DVD's and that one version went out to 2 or 3 different people. I obviously don't know which brand DVD palyer they all had, but it still seemed strange. It could very easily be possible all of them just happened to have a player that doesn't play DVD-R. Although a friend of mine tried it & it didn't work for him either & he borrows DVD-R's from me all the time.

If I can keep the bitrate high enough (whole DVD is just over 2GB at current res.) there shouldn't be all that much degradation should there? I haven't checked it out yet, but I'm sure I can duplicate the current bitrate of the DVD if not even increase it, which should help even more, correct?

[ZippyP.]

Higher bitrate should help.

[vhelp]

.
.
My OP on the 352 x 480 MPEG-2 's that did not play.. Since audio was not
mentioned, perhaps the MPEG-2 was encoded w/ 44k instead of 48k for DVD
specs

-vhelp 2558

[leebo]

I need help, not worthless comments on how stupid my ideas are. So to all of you who responded....I figured it out on my own, so go **** yourselves.

Well, I for one do not agree that the comments on your stupid ideas were worthless!

[RottenFoxBreath]

yeah,i was going to suggest that the audio might be 44k not 48k,as some more stringent dvd players are picky about that.
my old LG used to play the audio like that in FF mode,they all sounded like chipmunks.

[Sully]

No, it's not the audio either...

Must just be a wierd coincedence. Anyway, thanks for the ideas. I'll just go ahead & give the conversion a try & see what it looks like.