Just a very quick and dumb question, why does it take up more room to convert a AVI (about 1gb) to a DVD format taking up over 4gigs!!! The original is smaller, I have heard of shrinking or compressing the file, but if the original is small to start off with how can it expand it to over 4 gig, first the program ask to put it on two discs over 7 gig!!! I said fit on one. Does converting to DVD make it better quality? Thanks just trying to understand what is going on here I am using AVS Video converter...
The mpeg2 format requires more space for the same running time: or to put it another way, the original DVD mpeg2 files can be compressed to smaller file size if you use the likes of the XviD/DivX codec.
The quality won't improve, but making the xvid capable of playing on a dvd player will increase it size. Also the resolution for dvd will be upsize (720x480), the video bitrate for a dvd will will be higher about 3000kps (xvid usually 800-900kps), the audio is also about 192kps (xvid usually 128kps or lower). But you can lower the quality even more and fit 2 movies in a dvd quite easily. You won't lose any measurable quality. I do it all the time. For instance convertx2dvd which I use, at high quality will produce a dvd of about 4gb, at standard quality the dvd will usually be under 2gb. To me they both look the same on the TV.
No, you cannot make oranges from orange juice. When the original video source(DVD probably) was compressed into an AVI, some of the data was "thrown away", discarded. You cannot bring back the quality by simply converting back to DVD, all you can do is try to preserve as much as you can from what you have.
