Trying to "convert" TV series DVD9 discs down to DVD5 discs.
Using DVD Rebuilder Pro V1.28.2 and tried using HC, CCE, and PC encoders. Also tried using DVDFab V9.3.1.0.
Basically, DVDFab produced excellent results! But DVD Rebuilder produced poor results with the HC encoder giving the worst result and the PC encoder giving the best result but still not quite as good as the DVDFab result!?
[Attachment 47225 - Click to enlarge]
Original DVD9 screenshot
[Attachment 47226 - Click to enlarge]
DVD-RB DVD5 output using HC V0.23 encoder at BEST setting
[Attachment 47227 - Click to enlarge]
DVD-RB DVD5 output using CCE SP2 encoder at (default) 2 passes setting
[Attachment 47228 - Click to enlarge]
DVD-RB DVD5 output using PC V2.04.02.0 encoder at MASTER setting
[Attachment 47229 - Click to enlarge]
DVDFab DVD5 output
[Attachment 47230 - Click to enlarge]
Original DVD9 video details as per Media Info
DVD Rebuilder was being run under default settings.
All running in Windows 7 SP1 64 bit.
Why the poor DVD5 video output from DVD Rebuilder? Never had this poor result before, when converting other episodes from the same TV series!?
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Noted, thanks.
But if it is a low bitrate, what can be done about it?
Or if it is something else, what is it, and what can be done?
Thanks. -
Give it a higher bitrate.
TV series DVDs often pack too many episodes into a DVD9. There's often not much leeway to lower the bitrate so everything can be packed into a DVD5 with good quality. In addition, we don't know if you removed the extraneous garbage and extras to clear more space for the episodes, or how much room the menus take up that could be trimmed. Nor do we know what you did that you shouldn't have done, or didn't do that you should have. No logs have been produced yet.
One thing you can do is to split the DVD into two parts using VobBlanker. Then it won't have to be compressed at all. Here's a guide:
http://download.videohelp.com/jsoto/guides/VobBlanker/splitdvd9/index.php -
Nothing has been intentionally trimmed nor removed by myself from the original videos. Any removal or trimming would have been done by DVD-Rebuilder and/or the encoders(?)
Everything run at default settings, except settings HC encoder to BEST quality, and ProCoder set at Master quality.
Prefer to have videos on ONE disc instead of splitting them onto two discs.
Here are the logs (redone as previous logs were deleted) -
rebuilder_HC.log
HC encoder log
rebuilder_CCE.log
CCE encoder log
rebuilder_PC.log
ProCoder encoder log -
Looks like the rebuilder is picking 400kbps for the bitrate. This is far too low for DVD, no wonder
it looks poor. I'm not familiar with the program, but somewhere there must be a place to control it. -
Neither DVD-Rebuilder nor the encoders used remove anything. The percent reduction was less than 20% so the quality should be okay. To learn more, short samples of both the source and a reencode would be needed. If you're not willing or able to do that, then just stick with the DVDFab transcode of the episodes.
Edit after reading davexnet's answer:
Reduction Level for DVD-5: -19.5%
- Overall Bitrate : 400Kbs
- Space for Video : -1,320,144KB
Is the final result really only 1.3 GB of video in the episodes? Are there a lot of audio tracks? Are there a lot of extras? If the average video bitrate is 400, then the original bitrate would have been less than 500, so it doesn't really make much sense. Something went terribly wrong somewhere. Maybe reinstall?Last edited by manono; 24th Nov 2018 at 13:59.
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In the process of trying to find the best way of making sample videos of the videos in question, I found out what was causing the poor re-encodes!
The original DVD9 files were extracted from an ISO to a test directory. The test directory also contained VOB files which were compressed as a test and the compressed files were renamed. The original VOB files were left untouched/unmodified. It seems that DVD Rebuilder also "read" these compressed files which interfered with the normal operation of DVD-RB; this lead to low bitrate conversions.
After deleting the files in the test directory and re-copying the original DVD9 files to the test directory, those files were now re-encoded correctly with bitrates somewhere around 2700 Kbs! Much better result for all three encoders (HC, CCE, and PC)!
So it appears that there shouldn't be any other files (especially anything that is even remotely a video specific file type?) within the source directory, otherwise these other files may interfere with the correct functioning of DVD-RB.
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