theYinYeti Posted September 1, 2009 Report Share Posted September 1, 2009 I have a family VCR tape I value a lot, and I want to convert it to DVD format. So far, harnessing all the power I could get from “sedentaire†and my simple PCTV Stereo card, (using mencoder, mpeg2, vqscale=2), I managed to transform the 3hr tape into a single 768×576 video file, tens of GB in size. I have also selected the mplayer parameters that give IMO the best compromise between detail and image quality (noise removal, color adjustment…). I'm no expert, though, and I may later ask for advice on this topic. Last but not least, I have written down in a file the exact beginning frame and ending frame of each sequence I want to encode individually. Now I want to post-process this file to obtain sequences that will all fit on a DVD. I'll author the DVD by creating several menus to launch the sequences in the order I want; I have past experience with simple menu-making, and dvdauthor usage. Knowing the cumulative length of all sequences, I computed an average video bit-rate (VBR) so that it could all fit on a standard single layer DVD. My attempt has been to iterate on the sequences-file (with a script) to post-process each sequence (using -idl and -endpos) by applying the “best†parameters I had found and the VBR I had computed (two-pass). And I was disappointed by the resulting quality. Having no expertise in audio-video processing, I'm thinking about raising the VBR. To do this, I need to author a dual-layer disk. Is it possible? Yves. Quote Link to comment Share on other sites More sharing options...
tux99 Posted September 1, 2009 Report Share Posted September 1, 2009 Having no expertise in audio-video processing, I'm thinking about raising the VBR. To do this, I need to author a dual-layer disk. Is it possible? Yves. Sure, as far as know there is nothing special involved, any current version burner software like for example k3b or growisofs will burn a dual-layer disk for you if the size of the data is bigger than 4.5GB and you have a burner capable of dual-layer. See this thread too: https://mandrivausers.org/index.php?/topic/83724-problems-burning-double-layer-discs-and-isos/ Quote Link to comment Share on other sites More sharing options...
theYinYeti Posted September 1, 2009 Author Report Share Posted September 1, 2009 Thank you tux99. But that thread is about burning a data DVD. Did you try burning a Video DVD directory tree on a double-layer media? Yves. Quote Link to comment Share on other sites More sharing options...
tux99 Posted September 1, 2009 Report Share Posted September 1, 2009 (edited) Thank you tux99. But that thread is about burning a data DVD. Did you try burning a Video DVD directory tree on a double-layer media? Yves. Yes, but not from home videos, only backups of movie DVDs, but that should be the same once you have authored the VIDEO_TS folder onto hard disk and then transformed it into iso format. I used growisofs to write the .iso onto the dual-layer DVD, like this: growisofs -dvd-compat -speed=2 -Z /dev/hdd=/data/dvd.iso /dev/hdd is my DVD burner, replace as necessary. Edited September 1, 2009 by tux99 Quote Link to comment Share on other sites More sharing options...
theYinYeti Posted September 2, 2009 Author Report Share Posted September 2, 2009 Thank you very much tux99! I'll report when I have time to try; it may be in months though… (I have so little free time…) Yves. Quote Link to comment Share on other sites More sharing options...
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