450 eTV From 704x576 to DVD 720x576 ?

[B139B]

I have captured movies at 704x576 MPEG2 with the newest software from Matrox on my XP 1,7GHz P4 1024 MB.

When I create VCD or SVCD's with TmpgEnc the result is fine. When I try to make DVD reolution with the same program, the Audio is distorted and the movie is not running smooth any longer.

> Is it possible to make 720x576 from a source with only 704x576?

> Has this distortion in audio something to do with 44 to 48kHz sampling?

Can someone give me some tips for the best way to make captures (704x576) to DVD video? I need to correct the audio-gap between video and audio.

Christian

[Frank Marshall]

I can't help much but to reassure you that D1 (704 x 576) is a legal resolution for DVD. Audio should be sampled at 48k.

Good luck!

[Brian Ellis]

I would say it would be a mistake to convert from 704 to 720 pixels. It's years since I did anything at 704 wide (or used TMPGEnc!), so I can't give you a direct answer. However, if you are not too experienced with the intricacies of TMPGEnc (and it is quite complicated), maybe a simpler authoring package, such as DVD MF3, will give equal or better results without worrying too much about the details.

I recommend you use your editing package to convert from 44 to 48 kHz audio sampling to allow you to check everything in Preview before encoding the MPEG-2.

[junkmalle]

I've heard that TmpgEnc can have problems with audio. Everyone suggest first ripping the audio as a WAV file then use the WAV file instead of the video's audio track in TmpgEnc.

I have a Matrox G450 eTV card and sometimes record in MPG mode. I can use the 704x480 MPG (384 Kbps MP3 audio) files directly in Ulead DVD Movie Factory 2 without re-encoding. Technically, to be fully compliant with the DVD spec the audio should to be AC3, but the reality is, almost all DVD players support MP3 audio.

[Brian Ellis]

Whoa, JM. AC-3 is standard for NTSC, but not for PAL, and B139B is in PAL-land, judging from his formats. Older PAL DVD players do not support AC-3, although modern ones do.

[junkmalle]

Originally posted by Brian Ellis
AC-3 is standard for NTSC, but not for PAL, and B139B is in PAL-land, judging from his formats.

Thanks for the correction. I realized he was PAL but I didn't know the PAL standard wasn't AC-3 also. In any case I just wanted to point out that he could burn his PC-VCR MPG files to DVD without converting with TmpgEnc.

[B139B]

704x576 DVD standard

Thanks everybody for your replies. I will give it a try to burn them directly to DVD. I havn't heard about this "704" format on DVD before. From where does it come from?

I have used TmpGenc instead of the built in Mpeg codec in Nero. The quality is much better. I think TmpGenc was also better than the Ligos codec built in Media Studio Pro 6 trial - I tested long time ago....

Christian

[Brian Ellis]

IMHO, the best encoding comes from the new encoders in DVD MF3 and DVD WS2. Anything is better than the Ligos MSP 6 encoder. TMPGEnc is also good but no better than the ones I mention for most things, but it is a lot more difficult to set up. I stopped using it many months ago.

As I say, IMHO

[Frank Marshall]

"I havn't heard about this "704" format on DVD before. From where does it come from?"

I'm not really sure of its origins. It seems to me there was a thread here a long time ago in which this subject was addressed so you might want to try the search function. D1 is exactly twice the horizontal and vertical resolution of the MPEG-1 VideoCD resolution. For PAL that's 352 x 288.