problems encoding with DVD-RB 0.70/CCE 2.50

[nick_harambee]

hello,

i have used DVD-RB 0.70 with CCE 2.50 succesfully for a couple of backups, and then the last one went wrong. the overall output size of the back was about 2.5 GB instead of 4.3 GB. the original movie only had two segments, and when i checked the compressed version i had no video at all for the first segment (the first half of the film), so this is obviously the problem. i didn't change any settings from the last encode. does anyone have any ideas what might have gone wrong?

here's the log:

[23:25:05] Phase I, PREPARATION started.
- VTS_01: 3,381,245 sectors.
-- Scanning and writing .D2V file
-- Processed 210,785 frames.
-- Building .AVS and .ECL files
- Reduction Level for DVD-5: 63.4%
- Overall Bitrate : 3,851Kbs
- Space for Video : 3,963,500KB
- HIGH/LOW/AVERAGE Cell Bitrates: 3,924/3,765/3,851 Kbs
[23:37:02] Phase I, PREPARATION completed in 12 minutes.
[23:37:02] Phase II ENCODING started
- Creating M2V for VTS_01 segment 0
- Creating M2V for VTS_01 segment 1
[04:07:06] Phase II ENCODING completed in 270 minutes.
[04:07:06] Phase III, REBUILD started.
- Copying IFO, BUP, and unaltered files...
- Processing VTS_01
- Rebuilding segment 0 VOBID: 1 CELLID: 1
- Updating NAVPACKS for VOBID_01
- Rebuilding segment 1 VOBID: 2 CELLID: 1
- Updating NAVPACKS for VOBID_02
- WARNING: VOB Count Old: 1 New: 2
- Updated VTS_C_ADT.
- Updated VTS_VOBU_ADMAP.
- Updated IFO: VTS_01_0.IFO
Correcting VTS Sectors...
[04:29:05] Phase III, REBUILD completed in 22 minutes.

thanks

nick.

[nick_harambee]

i have now tried this film twice now and get the same result. first i reauthored the dvd using dvd shrink so that i would just have the movie (i have checked this copy - it is fine), and then i compressed using dvd-rb. all of the other dvds that i am backing up by this method are working fine. does anyone have any ideas why this one isn't working?

thanks

nick.

[pg55555]

Do no preprocess

[crim33]

I have just started encountering this also, my encodes are coming out around 3.5 Gigs on a variety of movies.

Can you further explain what you mean when you say "do not preprocess"?

Thanks.

[Tore]

Can you further explain what you mean when you say "do not preprocess"?

Do you use other tools (other than tools for ripping) like dvdshrink or Dvdremake before you are using DvdRebuilder??

[nick_harambee]

i preprocess with dvd dvd shrink because i only want to backup the movie and not compress the whole dvd, and there doesn't seem to be a way in dvd-rb of just choosing the movie.

nick

[Trahald]

Originally posted by nick_harambee
i preprocess with dvd dvd shrink because i only want to backup the movie and not compress the whole dvd, and there doesn't seem to be a way in dvd-rb of just choosing the movie.

nick

dvdrb is for complete dvd backups. hence the lack of an option. you are free to preprocess the disk and while it may work often, if there are failures you are on your own. shrink may be leaving a stumbling block for dvdrb. thats why we insist you do fall back to complete backup with dvdrb if there is a failure... or just letting shrink do the movie too.

see faq Q5

[nick_harambee]

is there a way of just ripping the movie onto my hard drive with say smartripper or dvd decrypter and then having dvd-rb do the compress on the movie?

nick.

[pg55555]

That would be preprocessing too.

The recommendation is to try RB without preprocessing in order to isolate the problem: If it works we know the preprocessing was the cause of the problem. If the problem persists, we know we have to look elsewhere, that the pre-processing was not the issue. Anyway, the debuggging should be done on un-processed sources, and after a solution is encountered you can try on a pre-processd (movie only) source.

The alternative to preprocessing is POST-Processing: You run the output of RB through Shrink for your movie only backup

The problem with POST-processing is that if you use the RB defaults and do the movie-only afterwasrds, you are not using all the available space (bitrate) for the movie, so getting a quality lower than what wuld be possible. The workaround is to set the TargetSectors setting in the rebuilder.ini to a size larger than a DVD5 (around 2270000 sectors), so that the ouput from RB will be larger than DVD5, but after doing the POST-processing it will fit.

The tricky part is to know what have to be that TargetSectors setting, which will vary from DVD to DVD.

A way to estimate it is to simulate RB compression with Shrink:
- Load your DVD riped files into Shrink, Full Backup mode
- Set compression of Menues to "No Compression" (RB does not compress Menues).
- Set the compression of the Movie to Custom, and manually select a percentage such as the movie is close (but below )to a DVD5 size (4400 MB?) with the audio and subtitles you are planning to keep.
- Set the compression of the Extras to Custom, at the same ratio as the Movie
- Look at the projected size of the output (the bar above will have a red part, showing the projected output will exceed DVD5 size). Take note of the figure (Say it is 5800, as an example)
- Calculate by how much this size exceeds the DVD5 mlimit (in our example 5800-4464= 1336 MB). Translate this figure to sectors by dividing for 2.048 and multiplayin by 1000 (in the example 1336 / 2.048 x 1000 = 652,000 sectors)
- Adding this figure to the default TargetSectors value (2236000) we get an estimation for your TargetSectors setting (in the example 2236000 + 652000 = 2288000). Put the setting into the rebuilder.ini file
- Process with RB.