lot of blocks appear, and part of screen is flickering?
 

Hi! I started 2 weeks ago with making KVCDs. I got a lot of help in the german forum and now the quality of my KVCDs is now really good. 8)

At the beginnig I could not believe in KVCD but now I do. I am using ToK and mpeg-1 as stream type. My player DRAGON DVD-100 can play all 6 samples from the compatibility image. :P

In another topic I told you: :?

That is the answer of Dialhot:O.K. I can live with the "title problem". But today I tried a new movie and it happened during the movie. In a very bright scene (Star Trek Nemesis; they are on a planet and drive a buggy) a lot of black blocks appear and a part of the screen is flickering in the top left and right corner. SH*T! :cry:

And so I thought this was worth a new topic because it is a very special mpeg-1 problem. I am using 480 x 576 as PAL resolution and my player can play all mpeg-1 resolutions. :roll:

So I tried mpeg-2 and there was no flickering but the quality is not as good as mpeg-1! Does anyone know this problem? I would like to use mpeg-1 for better quality... Help!

Hi Ryo,

Have you tried muxing and burning your Mpeg-1 file as SVCD following Mauddib's suggested SVCD settings for BBMpeg listed here: http://www.kvcd.net/forum/viewtopic.php?t=2742. Maybe that might help :?:

Good luck,
-d&c

Thank you dazed&confused!

I muxed it in every possible way (SVCD, VCD; bbMPEG, TMPGEnc) but the problem is still there! :cry:

Am I the only one with this mpeg-1 problem? :(

Did you also tried one setting in TmpgEnc's CQ Mode Settings --- to check the option "enable ...... not to be lower than min Bitrate"??
Cause TmpgEnc sometimes goes below the min bitrate even its set to a definitve value.

Try this, and just encode about the first 10 Min of the Movie (where your problem appears at the beginning) do a muxing using bbmpeg and the recommended settings --- burn the disk --- watch it on Tv.

No you are not ! As I told you before (and you quoted me in your post) :
I never see anyone finding a solution but perhaps this time...

Hi Ryo!
Did u tryed to encode this specific very bright scene with max bitrate of 2200 or even 2000 instead of 2500 ?
It could be bitrate problem !!!
bman

Oh, ... i didn't recognise that he also got problems on bright scenes :?
Thats also a point I do on all my encodings ... lowering the max bitrate for each movie different ... for example less action scene-movies ... for me this gives a real advantage to obtain less filesize by still preserving quality.

I tested different PAL mpeg-1 resolutions:

1. 528 x 576 failed
2. 480 x 576 failed
3. 352 x 288 O.K.

So I think that my player can not handle mpeg-1 in higher resolutions than standard PAL VCD. The strange think about it is that 99% of the movie plays correct with the higher resolutions. Maybe there is a solution!?

@Dialhot: Sorry, I meant the problem during the movie and not the titles! :wink:

@all: It does not seem to be the bitrate. I tried higher Min. and lower Max. Bitrates.

Hi Ryo !
I would like to suggest one more test if it's ok with u .
Try to mux video & audio stings as mpeg1(system) or even as mpeg2(system) if your player can play SVCD.
This way( if it's working for u) u'll lose ~13% of disk space (burner will put 2048byte/sector instead of 2324) but u'll get high resolutions working on your player :wink:
It worth to try !
bman

@bman: Thank you! I tried your way but still have the problems. :cry:

@All: All files from the compatibility image v2 played well on my player but when I use mpeg-1 I have errors in some scenes (titles, very bright light and some animations). Is there really no solution. So I have to use mpeg-2 and it looks not so good... :cry:

If ever someone with DRAGON DVD-100 or DIK DVD-270 reads this and has made another experience please post it. :wink:

Try encoding the video with mpeg-1 but with a frame rate of 29.97(30) fps. I had a problem with my Philips that it only plays movie files at 30fps when the mpeg file was optimized. It was the same with another DVD player I tried on, so it might be the same with yours.

Ryo !
Last very last one !
Try to encode whole movie VIDEO and AUDIO as CBR .
I think your player heats VBR mode .
bman

So "say good bye to KVCD" :-(

No, say welcome to KVCD ....

by using mpeg1 on 352x288 Streams (also KDVD) and
by using mpeg2 on 480x576 Streams!

That problem is known in other forums too.
Player models like yours, some mustek and some others too, ... have problems when encoding mpeg1 by choosing a height of 576!!

@ incredable
Are u sure that prob is height of 576 ???
Cos if so maybe it'll be solution to convert PAL resolution (576) to NTSC(480) and encode with (NTSC) lower resolution .
I'm doing so almoast all my last encodes ?!!
bman

Have you tried muxing and burning as SVCD? My Pioneer DV-343 doesn't really like VBR MPEG-1 files but if I mux and burn as SVCD, they play just fine :D

I use bbMPEG to mux and VCDEasy to create the CD image. You can burn the image with any program you like.

Well everything could be possible, thats why we're here :D
The point is that some players do not accept 480x576 by using mpg1
480x576 mpeg2 in many cases solved this problem. Those players are too much in love with standards I think.
On the other Hand, just converting a PAL Size to 480x480 by still maintaining the 25FPS is another trick, yes I did this too but also it depends upon the players brand and model.

Thats why he should do a test using KVCD mpeg2 480x576.
90% of my OneCD Encodings are encoded as 480x576, mpeg1 (cause mine accepts this) and muxed by using bbmpeg as SVCD to use the header trick. Thats why my standalone "thinks" he gets a legal 480x576 mpeg2 SVCD disk.
:wink:

incredible wrote:
[/quote]

Those players are too much in love with standards I think.
....but also it depends upon the players brand and model.

:wink:[/quote]

really true incredible!
in few words you show the "secrets"!

:wink:

Than you all very much! :) I did so much tests... :cry:

Now these are the KVCD resolutions I have to use: 8)

1. 352 x 288 PAL mpeg-1
2. 480 x 576 PAL mpeg-2

Is there anything special I have to know about mpeg-2? Are there any options that put the quality closer to mpeg-1? :?:

Sorry to hear none of the suggestions here seemed to work for you Ryo. :(

I'm just curious...did you try encoding your problematic bright scene and/or credits using CBR instead of CQ like bman suggested? Understand, I'm not recommending that you encode your KVCDs this way, but simply as a test to see whether or not the VBR encoding is the source of your (and other peoples') problem. If the problem remains even with CBR, then it would seem that the problem is probably due to some kind of hardware or firmware (software) limitation of your dvd player.

While I don't think this is the answer to your problem, I found this vaguely similar article about luminosity problems on cyberhome's site: http://www.cyberhome.com/tech_issues.asp?ID=24 . I figured someone may find it of interest.

More likely, your player is just fussy with non-standard mpeg-1 streams. Have you checked online for any firmware upgrades (official or non-official) for your player? If any exist, that may help. Also, some dvd players use a standard IDE-based PC DVD-ROM drive inside. If you are comfortable and competent working with electronics (and don't mind possibly voiding your warranty by opening it), you might consider opening your dvd player (unplug it first!) and carefully replacing the DVD-Rom drive with another one to see if it might help any. Some people do this trick to allow their older dvd players to play the newer media types, such as dvd+-R/RW or 99-minute CDRs. Newer Lite-On dvd drives are a pretty good choice because they tend to support most formats, but any drive would probably be okay for simple testing purposes. I'm definetly no expert in this area, but I would guess that your problem is probably more likely due to the software that runs your dvd player rather than the dvd-rom drive itself, but it still might be worth a shot if you've tried everything else and you like to experiment.

Well, mpeg-2 looks/works better at higher bitrates, so splitting your movie onto more than 1 disc and increasing your CQ level would help (or else dropping to 352x576 for 1-disc encodes would give you a higher CQ, but less sharpness). If your movies are short and you have enough space on your discs, you also might want to try mpeg-2 @ 528/544/704x576 resolutions if those will work for you, but PAL resolution + PAL framerate + mpeg-2 all create larger filesizes than NTSC mpeg-1, so larger resolutions may not be an option for you unless you want to use 2 or 3 discs. I'm sure some PAL users can give you some better advice about what resolutions and CQ levels you can expect to be able to use for your PAL encodes of various lengths.

You might consider taking your problematic KVCD (and a copy of the compatibilty Test CD) to your local electronics stores and finding yourself a nice KVCD-compliant replacement player! It sure would be easier than all of this! :roll: :lol:

GOLDEN RULE: If it doesn't play KVCD, DON'T BUY IT! :wink: (boy, it sure would be great to see a player that boasts of KVCD-compliancy someday!...even any general mention of "X"vcd/svcd compatibility would be a nice change.....Kwag, if you could ever manage to work a deal with some manufacturer/s to specifically tailor a player to KVCD specifications, I'd be first in line :wink: ).

Good luck,
-d&c

@dazed&confused: CBR works (mpeg-1, 528 x 576 PAL, CBR 1150)! Success! :?

mpeg2 VBR will be the better way instead of encoding mpeg1 CBR!
The Advantage of VBR and therefore the quality will be lost cause low peak scenes will have the same bitrate like the high peak scenes and this results in bad quality espaecially in high motion or action scenes. Maybe you will receive a little bit less CQ by using mpeg2 but ... 480x576 quality is good and shurely when using VBR! ;-)

BTW: mpeg-1, 528 x 576 PAL at CBR 1150 will look horrible :?

Now it is getting really strange! :twisted:

When I do not use an avs script and load the *.d2v directly into TMPGEnc it WORKS. What the...!? What is that? I Never thought it could be that easy. I am using the optimal script. Does someone have any idea?

Sorry, just the titles play correct without the avs script! :oops:

So post your script and we'll see whats wrong.
Also your settings in TmpgEnc, like "Center" or "keep aspect ratio", "interlaced" encoding or not interlaced, which is important to mention.

Cause the logic is that your player doesn't see if your encoding passed avisynth or not :wink:

Here is the script:

TMPGEnc: full screen (keep aspect ratio), non-interlace (progressive)

IF these are the parameters you use when encoding USING the AVS script
Then try when using the script:
- source interlaced
- video encoding interlaced
- video arrage method Center

:cry: No luck!

It does not matter!

I will use:

352 x 288 mpeg-1
352 x 576 mpeg-2
480 x 576 mpeg-2

Thank you all very much!

@ Ryo
just to get it right :
U say that
352 x 288 mpeg-1
352 x 576 mpeg-2
480 x 576 mpeg-2
all this resolutions are working for u ???
If it's so why don't u encode your movie as
352 x 576 mpeg-1
480 x 576 mpeg-1
and mux them as SVCD that means give a SVCD header to your file . If everything is prepared right then this must work :wink:
bman

This already was recommended and it seemed that he had no luck by doing this. (If I understand this right by watching the replies of the past in this thread). For me it works also, but some players as I said won't accept this.

@ Incredible
OK , OK - U are right . I remember he sead something like that .
But ...
I want to not give up on this prob and suggest one more ( maybe stupid sugestion ???!!!!)
It worth to try PAL -> NTSC conversion .
U see as NTSC picture at any resolution is smaller then his parallel on PAL .
So if we make actual picture smaller at the same bitrates maybe player will behave in different way and allow smooth playback .
I know it's twisted logic but I prefere do one more test than give up :wink:
bman

The interesting thing is that I can play these resolutions as mpeg-1 and the movie plays 99% correct. But in some scenes (as descriped earlier) there are big black blocks and parts of the screen are displayed twice in the upper corners.

I want to play my movies 100% correct so I have to use mpeg-2 and everything is fine. Only the picture quality is lower than mpeg-1. :(

It would be better for the quality if I could use mpeg-1. :roll:

That's it! :wink: :D

By the way: Is there a mpeg-2 optimized script? :?

Post processing should be same with most or all codec, another word the optimized script will be just as good with mpeg-1 as mpeg-2. But if you want to try a different encoder for mpeg-2 that may give you better results try this http://www.kvcd.net/forum/viewtopic.php?t=6983. MCE isn't great in getting the exact file size, but for me the quality looks a lot better for me.

@ak47: O.K., I will try MCE!

Hey! Are you Ryo from animedigital.de? :o

@buschkobold: No, sorry! :wink: