CD-i > DVD

[cynflux]

hello.
i am trying to converting video from from 2 CD-i discs onto one DVD.
i have already ripped the .dat files from both of the CD-i discs.
The .dat files are about 500-600MB each.
i have renamed the .dat files to .mpg files.
the audio/video of the .mpg files are of decent quality when i play them on my computer.
the sound on cd-i discs are supposed to be digital audio.
i attempted to burn the .mpg files onto a DVD.
The .mpg files were converted to dvd files with DVDSanta and then burned to DVD with DVDShrink.
The resulting DVD was absolutely horrible.
The video was very pixelated, out of sync, and the sound was muddled and distorted.
How do i convert and burn a DVD with the same audio/video quality of the original CD-i discs.
thank you in advance for your help and i look forward to hearing from someone very soon.

[drewzor]

the dat file is a mpeg1 file which also means it will have 44000khz audio. If you wish to join the files you will need to convert the dat file to mpg properly, not just changing the extention..

DVD mpeg's are mpeg2 with 48000khz audio at twice the pixel size 720x576.. this explains the pixelation.

Check out the tools section in the menu for vcd to dvd applications.

[bobkart]

44000khz audio

I guess you mean 44100KHz audio.

[cynflux]

thank you for your response.
is there any programs you recommend?
i am not concerned about the speed of the
conversion. i am more concerned about
the audio/video quality.
the renaming of the .dat file to the .mpg extension
was suggested on a tutorial on this site.
thank you in advance.

[drewzor]

yeah 44100khz... I use tmpgenc.

[Hal_loe]

There should be no need to convert the mpeg1 video to mpeg2 video.

From http://www.mpeg.org/MPEG/DVD/Book_B/Video.html

MPEG-1 is allowed with a resolution of 352x240 or 352x288 only.

TMPGEnc DVD Author accepts mpeg1 files without converting.

Hope that helps.

[Baldrick]

Yep, just add the mpgs in TMpgenc DVD Author. See http://www.digitalfaq.com/dvdguides/convert/vcdtodvd/vcdtodvd.htm (similiar for cdis with dat files)