I'm having problems converting AVI and WMV movie files with DivX and Xvid codecs into DVD format. during playback the video constantly freezes briefly, and it's most noticable when the camera pans sideways or up/downwards.
I have the following codec packs: K-Lite, CCCP and ACE Mega Pack; as well as the latest DivX and Xvid codecs.
Programs I have tried to create DVDs with are Nero 8 and ConvertXtoDVD. The movies play just fine on my computer with Media Player Classic. I had a lengthy e-mail exchange with Nero Support who suggested the problem lies with the movie files themself, but I doubt this to be the case as the source I got the movies from is very reliable.
I'm assuming the problem may lie in how the codecs/packs are set-up on my system and was wondering what changes I'd need to make to help rectify the problem or whether I need to install something else? Would greatly appreciate any help you guys could offer!
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If cameras add ten pounds, why would people want to eat them?
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Multiple codec packs is just asking for conflicts. That said, jerky pans and zooms are often a sign of poor quality format conversion. Try using FAVC instead of crap like Nero. ConvertXtoDVD should be able to do a reasonable job, depending on the source. Note : there is no nice method using software that will convert 29.970 fps NTSC video to PAL.
Read my blog here.
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Originally Posted by mpackRead my blog here.
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Originally Posted by guns1inger
DVD has a minimum bitrate too (though I don't remember offhand what it is), but that would give the opposite problem, ie. jerky video at times of little or no motion in the scene. This is what I usually get wrong, ie. forget to enable the "pad if data falls below minimum bitrate" option in the MPEG2 encoder. -
DVD doesn't have a minimum bitrate specified. It is, however, virtually impossible to get very low bitrates with any decent encoder.
My money is on an inadequate PC that has been soundly rooted by the installation of not just one, but multiple codec packs.Read my blog here.
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Originally Posted by guns1inger
I freely admit that I have no access to the official DVD specs, but I always thought that DVD did have a required minimum bitrate, though I don't remember ever knowing what it actually was (since I relied on "DVD" presets in the encoder to get most parameters right). And this morning in fact I had a problem with a newly encoded video being jerky in low motion scenes (but fine in high motion!) - it seemed clear to me that this was a min bitrate problem.
The MPEG2 encoder I use btw is the TMPGEnc Plus v2.5, by all accounts a good quality codec. Yet, on video frames where there is no motion and the video has been temporally filtered, it is possible to get very low bitrates on B frames (maybe P frames too). TMPGEnc has the zero-padding option I mentioned before. -
sorry for the delay in replying. I initially didn't have any codec packs when the problems first materialised, and so I installed k-lite. when that didn't help, I googled around a bit and saw other suggestions for CCCP and ACE so I installed those, which again made little difference.
the movie formats are usually in either 23 or 25 fps (I rarely get the 29fps). the choppy playback persists even when I don't attempt to convert from NTSC to PAL or vice versa.
I'll try again using the programs you guys referred to and see if that works, and also play 'em on FLC. will update again in the next day or two.
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