manicminner
18th November 2002, 11:32
usually i try to obtain my dvd-r sources from commercial dvds, but some times i only found this in divx media.
no problems with bitrates, compatibilities, etc to re-encoding, but a great dubt with aspect ratios and CCE.
CCE claims to set standard DVD fps and frame sizes when checking the video|DVD compliant checkbox, but if you transcode any divx, you obtain a MPEG video, with the fps and the frame size of the original. for this reason, i use avisynth or virtualdub to resize and ajust the frame size to 720x576(standard pal frame size).
in this transformation i have severe dubs about aspect ratios and how to handle it. this are part of my (bad?) experiences...
film A: 512x336 --> 4:3 --- resampled to 720x464 and added borders up to complete 720x576. Re-encoded using CCE with DAR 4:3. NO PROBLEM when playing the video with PowerDVD.
film B: 512x288 --> 16:9 --- resampled to 720x400 and added borders up to 720x576. Re-encoded using CCE with DAR 16:9. The image is streched down when playing with PowerDVD. WHERE IS THE MISTAKE?????
film C: 640x272 --> 24:10 --- UNKNOW HOW TO HANDLE CORRECTLY. usually resample to 720x304 and add borders up to 720x576, then re-encode with CCE using DAR 4:3.
can any one explain the correct ways? or tell me about a good document concerning aspects ratios, frame sizes and how to handle and traslate?
regards.......
no problems with bitrates, compatibilities, etc to re-encoding, but a great dubt with aspect ratios and CCE.
CCE claims to set standard DVD fps and frame sizes when checking the video|DVD compliant checkbox, but if you transcode any divx, you obtain a MPEG video, with the fps and the frame size of the original. for this reason, i use avisynth or virtualdub to resize and ajust the frame size to 720x576(standard pal frame size).
in this transformation i have severe dubs about aspect ratios and how to handle it. this are part of my (bad?) experiences...
film A: 512x336 --> 4:3 --- resampled to 720x464 and added borders up to complete 720x576. Re-encoded using CCE with DAR 4:3. NO PROBLEM when playing the video with PowerDVD.
film B: 512x288 --> 16:9 --- resampled to 720x400 and added borders up to 720x576. Re-encoded using CCE with DAR 16:9. The image is streched down when playing with PowerDVD. WHERE IS THE MISTAKE?????
film C: 640x272 --> 24:10 --- UNKNOW HOW TO HANDLE CORRECTLY. usually resample to 720x304 and add borders up to 720x576, then re-encode with CCE using DAR 4:3.
can any one explain the correct ways? or tell me about a good document concerning aspects ratios, frame sizes and how to handle and traslate?
regards.......