6 Replies Latest reply on Jan 22, 2010 4:08 PM by Jeff Bellune

    dvd not as clear as avi files

    Dan Kirksey

      Not really sure what I'm doing wrong. I've been putting a complication of HS football highlight films together for players. I'm ripping the dvd game films and making them into avi files. I then work on them in Premiere Pro CS3, when done I export my creation as an avi file and author the dvd in Nero latest version.  My question is, the final dvd looks a little muddy or pixilated, but the avi files when played on the computer look clean & crisp. If someone could explain what I'm doing wrong and how to rectify the problem I would really appreciate it.  Thanks for any input & help.  Dan

        • 1. Re: dvd not as clear as avi files
          shooternz Level 6

          Without even knowing your project settings...your workflow involves encoding and re encoding compressed files to compressed files plus generational issues.....so it would be expected that you get a quality hit along the way.

           

          eg mpeg to avi to mpeg

          • 2. Re: dvd not as clear as avi files
            Harm Millaard Level 7

            Your source material is delivery format, for watching. You are using it to edit and with each step the quality goes down. If you want to edit, start with editable material from a video camera, not from a DVD.

            • 3. Re: dvd not as clear as avi files
              the_wine_snob Level 9

              Dan,

               

              This is the unfortunate way that it works. The DVD-Video will be compressed and Transcoded to MPEG-2, which is a lossy CODEC. There is no way around this.

               

              Now, you say that you are ripping the files to begin with. Are these already on DVD-Video? If so, they have already undergone one MPEG-2 compression, and then you are adding a second one. It's like making a copy of a document, FAX'ing that to a friend, and then comparing the FAX that he sends back to the original document. Degradation will take place.

               

              Sorry for the bad news.

               

              Hunt

              • 4. Re: dvd not as clear as avi files
                Level 4

                Hi,

                The thing that was tricky for me to grasp (still is sometimes, as I am new at this editing) is that "what you see " isn't what the program is going to see when you put the file into the program (be it the editor or the DVD burner ) ...  The "delivery" format is MEANT to look good....and be small in byte count (compressed) for speed of play and so on....but in fact although it looks good it may not look good at all to the programs...and then to what is exported from those programs.

                 

                Rod

                • 5. Re: dvd not as clear as avi files
                  Level 4

                  Hi


                  Just had a thought...you said..

                   

                  --------------------

                  I'm ripping the dvd game films and making them into avi files

                  -----------------------

                   

                  So you may be close to the people at the school, know them etc....   Maybe there is a way to get the source material before it is compressed a lot...from the person(s) shooting the games ??

                   

                   

                  If you talk to them about your difficulty and ask , maybe you can get better source material to edit the stuff.

                   

                   

                  Rod

                  • 6. Re: dvd not as clear as avi files
                    Jeff Bellune Adobe Community Professional

                    Or....

                     

                    Make a better choice for your AVI codec.  Lagarith and UT are excellent choices because they're lossless and fast.

                     

                    -Jeff