Burn DVD video lower than 1850kbps?

[lazyturbo]

Is it possible to burn a DVD with video encoded lower than 1850kbps? Because I want to burn a bunch of videos onto it, but their only VCD quality (~1000kbps). So it would kinda be a waste if space to encode them at 1850.

Hope someone can help me, thanks.

[redwudz]

You might want to look into 1/2 D1 or even VCD resolution. VCD video can be used in a DVD and it is 1150Kbps so you should be able to encode MPEG-2 down fairly low. Why not try a five minute sample and see what it looks like?

[gadgetguy]

It's possible, but if they already meet VCD spec then you don't want to re-encode since the video already meets DVD spec. Just convert the audio to 48k and you're good to go.

[adam]

The 1850kbps limit of mpeg1 DVDs is the maximum allowable bitrate. You can go as low as you want.

Most people probably don't realize this but its the same for VCDs and SVCDs. You can go as low as you want you just can't exceed 1150kbps.

[jimmalenko]

Anything other than 1150/224 for VCD makes it an XVCD, doesn't it ?

[adam]

Nope. The VCD specs list 1150kbits as the maximum bitrate. There is no specified minimum.

[jimmalenko]

Nope. The VCD specs list 1150kbits as the maximum bitrate. There is no specified minimum.

So is Baldrick's VCD page wrong then ?

https://www.videohelp.com/vcd.htm

PAL

Video:
1150 kbit/sec MPEG-1

https://www.videohelp.com/xvcd.htm

XVCD PAL

Video:
any kbit/sec MPEG-1 both variable and constant bitrate.

Should it say 1150kbps MAX ?

[lazyturbo]

So I just need to convert the movie to VCD quality and make the audio 48khz?

How do i make it 48khz in TMPGenc? It doesn't let me change it when I'm in VCD-mode. And in DVD-mode, it doesn't let me change the video below 1850kbps.

Please help. Thanks.

[adam]

Load the unlock template and then you can change the template settings however you want. Or just don't use any templates at all.

Do not use the VCD template as it uses non-compliant GOP settings for a DVD. Load the DVD template and then adjust the bitrate to whatever value you want.

[adam]

jimmalenko the xvcd description still seems accurate to me. The VCD description could probably be more specific but then again it might just cause more problems for people. I think Vitualis said that low bitrate VCDs didn't play well on his hardare VCD player. I doubt it would be a problem with DVD players but who knows. Practically speaking, 1150kbits is way too low as it is.

[jimmalenko]

jimmalenko the xvcd description still seems accurate to me. The VCD description could probably be more specific but then again it might just cause more problems for people. I think Vitualis said that low bitrate VCDs didn't play well on his hardare VCD player. I doubt it would be a problem with DVD players but who knows. Practically speaking, 1150kbits is way too low as it is.

gotcha.



I am corrected, and I just happen to be standing



Thanks for the clarification

[lazyturbo]

Oh, I get how to do it now. Thanks. The video files that I have are actually encoded in 520kbps .rmvb format.

What would be the equivalent bitrate for the .mpg file, or is it the same?

Thanks.

[mats.hogberg]

The bitrate of source file and dest file are not related - (nor comparable) - even more so when you're using different codecs in source and dest. Only rule of thumb I've seen is to use around 4x source bitrate when encoding AVI (DivX/XviD) to DVD mpeg2.
No matter what, you always get a degradation of quality when reencoding. The higher bit rate you encode to, the lesser the degradation. In the end, it's always a compromise between quality and file size.

/Mats

[junkmalle]

Oh, I get how to do it now. Thanks. The video files that I have are actually encoded in 520kbps .rmvb format.

What would be the equivalent bitrate for the .mpg file, or is it the same?

Forget bitrates. Use TMPGEnc's Constant Quality mode. Somewhere between 70 to 90 percent. Run a few short tests to see what quality you can live with, encode. That's the easiest way to ensure quality without any wasted bits.

[vcd4ever]

Nope. The VCD specs list 1150kbits as the maximum bitrate. There is no specified minimum.

The maximum bitrate is actually 1151.929 kbits.

vcd4ever.