Error UpdateIFO

[Jeff Mott]

I've been having this problem with DVD Rebuilder (v0.54) since I started using it. Initially everything seems to go perfectly. During encoding, about the last 4 segments only will return an error from QuEnc (v0.51) saying "Could not open Video Codec". And I'm assuming that this is the cause of my error from DVD Rebuilder during the rebuild process "Error in UpdateIFO: Shouldn't happen - contact developer."

The following is how my setup differs from the default:

Uncheck: Options->AVS Options->Convert to YUY2 (I'm not using CCE)
Uncheck: Options->AVS Options->AudioDub(BlankClip()) (I'm not using CCE)
Check: Options->QuEnc Options->Trellis Quantization

Options->Setup:
Path to QuEnc points to QuEnc.exe
Path MPEG2DEC3DG points to mpeg2dec3dg.dll taken from decodefix100.zip
(Checked: Add to AVS)

Mode->QuEnc Mode

And that's it. I only use Media Player Classic to view DVDs. I tried installing PowerDVD under the thought that perhaps there was some DVD decoding filter that my comp did not have, but I still received the error.

[Noah]

Try this (http://forum.doom9.org/showthread.php?s=&threadid=75331&perpage=20&pagenumber=2#post492111).

[dinoman]

During encoding, about the last 4 segments only will return an error from QuEnc (v0.51) saying "Could not open Video Codec". And I'm assuming that this is the cause of my error from DVD Rebuilder during the rebuild process "Error in UpdateIFO: Shouldn't happen - contact developer."

I had the same problem too and since doom.org newbies are to see but not be heard (can't post for 5 days, grrr), I had to do some digging around to come up with a workaround on my own. Turns out it happened everytime I ran DVD ReBuilder + QuEnc in 2-pass mode on any source where I blanked/deleted segments using vobblaker, Nero Recode 2 or DVD ReMake. It's a known bug with low bitrates in QuEnc. Noah pointed you towards the correct QueEnc thread. What I did instead was to use RB-Opt to manually tweak the low bitrates of all blanked Vobs. I ran RB-Opt after DVD-RB finished the prepare mode. I then clicked the button that hides Vob-IDs of insignificant size to unhide all vobs. Then I went through each vob and manually changed the low bitrate of blanked vobs from approx 700 to 2500. Then I saved my settings from RB-Opt and clicked encode and DVD-RB + QuEnc ran in two pass mode without any problems. Worked for me. Might be nice to be able to set a min bitrate in either DVD-RB or QuEnc. You do have to run DVD-RB in 3-click mode for this to work.

Edit: Make that RB-Opt not DVD-Opt.

Hope that helps,
Dino

[dinoman]

Originally posted by Noah
Try this (http://forum.doom9.org/showthread.php?s=&threadid=75331&perpage=20&pagenumber=2#post492111).

Offtopic,

Now, I can now see how to change the URL to point to a specific post. But is there an easier way to do this? Any way to navigate to specific post and then just cut-n-paste the URL from there?

Dino

[wmansir]

As of now it's kind of a pain. When the board updates to Vbulletin v3 there will be a link to each post included with the post, but I don't know when that will happen (Doom9 uses several custom mods which need to be ported to the new version).

For right now there are a couple of ways to do it. The easiest is usually to just click the 'search' button in the post you want, to search the users post history. If it is a recent post it will be right near the top of the list of results. For older posts you can go find it in that list based on the date. OR you can pick some unique words and do a search, displayed by post, and get the link to the post there. If you get a lot of results you can limit the search to just the username you want.

Also, if you want to link to a post you just made, use the URL that you are automatically forwarded to after posting.

[Trahald]

Originally posted by dinoman
I had the same problem too and since doom.org newbies are to see but not be heard (can't post for 5 days, grrr), I had to do some digging around to come up with a workaround on my own.
*snip*...Hope that helps,
Dino

Exactly.. 5 days is perfect digging around time ;)

[Jeff Mott]

I guess I was digging around in the wrong forum. :o

Anyway, so this is in fact a QuEnc bug? So then if I purchased and switched to CCE then the whole issue would just go away?

[dinoman]

Yes, it's a QuEnc bug and CCE should not be affected. I've read several posts where they were using DVD ReMake + DVD ReBuilder. As I mentioned previously, if you use DVD ReMake to blank any vobs, you will get the Could not open Video Codec error from QuEnc everytime a blank vob (with a low bitrate) is processed by DVD ReBuilder.

My impression is that the majority of the folks on this forum use DVD ReBuilder with CCE and are not impacted by QuEnc bugs. Do try using RB-Opt to manually tweak the bit rates. It's relatively painless.

I'm not against paying for CCE myself. My particular challenge is that I have yet to produce a single usable disc using DVD-RB. Alas. I'm saving the really hard cases for DVD-RB where what I want to keep is close to 8GB and would require almost 50% compression. I've backed up three such discs (all anime) using DVD-RB and each backup has problems. To be fair, nothing I've tried so far does a good job backing these discs up. What's intriguing to me about the DVD-RB + QuEnc combo is that for the most part the backups look great (much better than anything else that I've tried) and then there are parts that have interesting problems. Call me a glutton for punishment, call me stubborn, call me persistent, but it's becoming a bit of a challenge for me to back up these discs without splitting them across two discs.

Dino

[wmansir]

dinoman, are you running into functional problems or image quality issues? If it is image quality you may want to try a trial version of CCE to see if it is satisfactory. Quenc's output isn't quite up to CCE's standard yet, and I believe it has a known problem of producing horribly undersized (and ugly) frames for the 1st frame of each encoded segment.

[dinoman]

I did have some functional problems mainly because I'm running Windows 98SE and QuEnc. The remaining challenges seem to be image quality related although I wouldn't rule out random media problems.

The main problem is that I get random small blocks during playback fairly frequently on my standalone DVD player. A backup made with DVD Shrink at 48% compression had the same problem. I do wonder if it has something to do with anamorphic video (2 or the 3 DVDs are anamorphic). The DVD-RB disc played fine on my computer in wide screen and then played on my standalone in full screen with random blocks.

Then much less frequently, I'm getting large blocks moving and slowing/pausing of video and audio. That may be media related but then I backed up several DVD5 discs (with the same setup) that played without any problems at all in the standalone. I'm using Ritek G04 retail discs. Much, much later I did backup one DVD5 disc that exhibited similar problems. I then upgraded my burner firmware and lowered the burn speed to 2X and I haven't seen any problems with DVD5 or slight compressed (up to 30% compression) DVD9 backups since. But I can't completely rule out random media problems.

The last problem is not an DVD-RB problem, it's a filtering problem which I posted a message about here (http://forum.doom9.org/showthread.php?s=&postid=523988#post523988).
I'm not having much luck filtering out flickering around parallel lines in the 3rd anime disc. It looks to be hand drawn then scanned. I tried up to undot().deen().mssharpen() which looked good in test but still flickered on my standalone.

That was a far as I got before I decided to blank out what I could and try to get the compression rate down from 48% to closer to 40% and then I ran into the QuEnc bug above. Did find a workaround but haven't had the time to rerun the 12 - 18 hours of encoding per disc. And I'm still puzzling out what filter or combination of filters to use to get rid of flickering on the one backup.

Dino