Q: MPEG2 Encoder/DVD Picture Quality
by Boris L on Nov 3, 2003 at 7:51:32 pm
Hi, I am creating DVDs using Vegas 4.0 and Ulead DVD Workshop.
I am very unhappy with the video quality I see. Even on JPEGs which are perfectly sharp (when using Photoshop) come out blurry in the video. The video also comes out not very sharp with lots of edge artifacts.
I assume that Vegas does the scaling of JPEGs to fit the 720 x 480 NTSC resolution. Is it better to use Photoshop to scale all the photos to 720x480 for DVD use?
I am using the MPEG2 Encoder (Mainconcept) built into Vegas 4.0 for doing
the conversion of my videos (containing JPEGs and AVI files from miniDV camcorder).
I use 8Mbps CBR encoding using Mainconcept (all highest quality settings).
What can I do to increase the Picture Quality on the DVD?
When I watch the MPEG2 created, they look ok - but not fanastic. After DVD authoring, the quality is further reduced. I am setting Ulead DVD Workshop not to recode my compliant MPEG files. I've tried the same thing with DVD Architect 1.0c (as an experiment) and the quality is not any better.
What are your recommendations for improving picture quality of my DVDs?
Should I try a different MPEG Encoder? What settings works best for JPEGs and Mini DV video in AVI?
Re: Q: MPEG2 Encoder/DVD Picture Quality by Borjis on Nov 3, 2003 at 9:03:48 pm
You should be using .tga or .tif files (uncompressed) instead of .jpg
even uncompressed jpeg files still have some compression.
Your bitrate of 8000 CBR might cause playback stuttering on some set tops.
When I do software encoding I do a 1-pass VBR at a minimum of 500 and maximum of 7000 which turns out very nice. no artifacts.
But the mpeg2 video will appear soft no matter what you do as long as its viewed on a computer monitor (square pixels). It will look sharper on a TV (non-square pixels). Check any hollywood DVD title, in particular the show credits. They are softer on a computer monitor than a TV.
Re: Q: MPEG2 Encoder/DVD Picture Quality by Ed Kinnear on Nov 4, 2003 at 8:59:38 pm
I have done many photo montages using Vegas+DVD at the bit rate of 8 and using mostly jpeg, occassionally png. I have never had any problems, with the image quality in any way. And I do a lot of panning & zooming on my photos. But I also use the aspect ratio function.