What about the skipping problem?

Sab wrote on 4/24/2003, 4:18 PM
Hi,

We really like DVDA. Up to this point however, we cannot seem to make a disc that plays in Apex and even some Sony players without the video skipping. I saw this discussed before but can't seem to find whether or not the problem was ever resolved. If not, it makes this wonderful program completely unusable. Could someone set us straight on this? Thanks much.

Mike

Comments

SonySDB wrote on 4/25/2003, 8:39 AM
We have resolved this issue. It will be in the next update of DVDA.
Sab wrote on 4/25/2003, 5:50 PM
Thank you very much. Any info on the update release date?

Mike
JohnI wrote on 4/26/2003, 6:20 AM
I hope the next update will be released soon as I have a project which I believe suffers from this and I don't want to go to mass production and risk rejects. Any indications when??? Thanks John I
pbnyc wrote on 4/26/2003, 7:43 PM
Ditto. I have two projects with incredibly tight deadlines. I had planned on using Vegas + DVD. I purchased the program(s), created the videos and have created the DVD's, but they are useless to me because every time a chapter launches, it skips.

I ask: how in the world could you guys ever release a product with such an egregious bug in it? This is a terrible reflection on Sonic Foundry, and I'm afraid in spite of it being an outstanding program, Vegas and any related product have now been categorically eliminated from any consideration for use in product developement here at McGraw-Hill. Final Cut Pro and Premiere remain the only approved video packages.

That said, I'm still stuck with it. An indication of when the bug fix will be in place would be greatly appreciated.

Sincerely

Paul Banks
SonyEPM wrote on 4/28/2003, 9:27 AM
The DVDA 1.0c update is in the final stages of testing. We cannot provide a firm release date but it shouldn't be more than two weeks from now, and will most likely be sooner.
gold wrote on 4/30/2003, 10:28 AM
What is the resolution to the problem? codec, burn algorithm, etc.
Zorro2 wrote on 4/30/2003, 11:02 AM
The problem must stem from grabbing any frame other than an 'I' frame for a chapter mark. The skipping will ocurr as the chapter mark searches for the next or closest 'I' to start the GOP. Sounds like 1c will automatically move the chapter mark to that closest 'I' frame and solve the skipping problem forever.
gold wrote on 4/30/2003, 2:27 PM
Thanks, that sounds reasonable; its kinda nice to start with a complete frame rather than in the middle of a GOP pattern sequence. It would account for my lockup on clicking on chapter points further down in a video from the beginning. However I don't think it will help on the first frame of a video that is not the first video on the dvd problem I am seeing as this would be an I frame. Is there a way to tell if the chapter mark is on an I, P, or B?
pbnyc wrote on 5/1/2003, 1:25 AM
Do you have an email-based program update notification service? (If so, I don't see it, yet I thought this was a part of giving you my personal information during registration.)
pelladon wrote on 5/1/2003, 10:55 AM
I'm curious, has anyone with the skipping problem tried burning using a different program? Like use DVDA to prepare the DVD but use Nero to actually do the burn.

Wonder if that makes any difference.
DOGoodman wrote on 5/1/2003, 10:58 AM
I copy the _TS folders and burn w/Prassi, no difference.
gold wrote on 5/5/2003, 8:06 AM
My problem turned out to have nothing to do with Sonic Foundry's excellent software. I wasn't tracking disk brand correctly. I determined that all the dvd-r's that would only play halfway on older machines were some K brand blanks that I bought at Office Max. I tried burning the same dvd folder onto Verbatim disks with DVD-A and they play all the way through on all machines. I apologize for not conducting a scientific investigation. Once again its strictly the brand of DVD-R that's a problem, Verbatim, Pioneer, and TDK have worked on all machines; others don't. Sorry for my poor bookkeeping,
Gold
Hippo wrote on 5/5/2003, 12:33 PM
Hi,

Is this skipping problem in video also related to the skips found between audio tracks in DVD-Architect, especially when making a (audio-only) music compilation DVD of own-made live recordings in 24 bit/96 kHz format?

After extensive testing, it turns out that in 70% of the time the audio play seamless from one track to the following without introducing any gaps (on a Samsung S324 stand-alone DVD player). However, in 30% of the cases a small gap (0.01 to 0.06 sec) is introduced between continuous audio tracks, even when all WAV files in the compilation are cut at exactly a multiple integer of a PAL timeframe (exactly 0.040000sec equivalent to 3840 samplepoints at a samplerate of 96 kHz).

Comparison of the original WAV file on disk and the 24/96 digital copy via the S/PDIF output of the Samsung player show that the occurence of the small interuptions in the audio are consistently observed at precisely the same specific WAV tracks, which were already the problematic ones in a similar DVD music compilation project before. This highly suggests a software problem somewhere down the route.
Please note that the new version 1.0b of the DVD-A software really makes things even worse, leading to big (>0.5 sec) gaps between individual audio tracks.

Does the origin of the audio (and possibly video) skipping lies in the DVD firmware versions of DVD players (such as SONY, APEX and possibly Samsung), ... or is it caused by poor mechanical servocontrol in cheap laser arms, ... or is the skipping related to special DVD-A programming routines, which maybe searches for smooth transitions on certain I and P video frame intervals ?

I hope that the skipping problem will be resolved in the next update of DVD-A.
The DVD Architect software is, when most bugs are ironed out, a nice convenient tool to make personal high-resolution audio recordings in DVD-V format.

Used system:
Windows2000 (SP3)
DVD Architect 1.0 build 160
Pentium-IV 2.8 GHz, 1 Gb RAM
Pioneer A05 DVD-writer (firmware 1.00)
Samsung S324 DVD player

Hippo