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I'm new at this, and was wondering what the quality of a burned VCD/ SVCD is like on a regular TV, as far as video/ audio quality go. Any specific settings for optimal outcome?
Also, when I go to burn a m2v file on NERO, which heading on the status bar should I use?
Thanks for any response
The quality on TV is(subjectively)slightly better than played with most software players cause of the encoding hardwares more sophisticated filers. At least for me on my Yamakawa 715 compared to several player Programms under WinXP and Debian Linux
The VBV buffer size does not for the millionth time have any effect on image quality whatsoever you goddam fool, but may give problems on a less than compatible DVD player.
Reason: The VBV buffer is to set the internal buffer size of the decoder.
Basically what happens is there is a space in a memory chip called the buffer which is sort of a like a small pipe (so to call it). This pipe needs to be filled with data from one side before the data comes out on the other. The size of the VBV buffer setting in TMPG determines the size of this pipe.
If the pipe is too big and the data being supplied to it is slow moving such as low bitrate VCD's then what will happen is the pipe (buffer) will not fill quick enough from the input side before the data is requested at the output side causing 'Buffer underflow'
When the decoder requests the video data at the output side then this data won't be there yet so your decoder has no information to supply to the DVD player to put on your screen. To compensate your decoder will just have to wait for the data to appear which will then look like jerky playback because it is always waiting for the data to catch up or your player will just freeze after a certain length of time and refuse to play the movie any further.
A similar thing would happen if its too small i.e small VBV buffer size and the data being supplied to it is high bitrate (such as DVD) then this information will be pushed into the pipe at a fast rate and the pipe will fill faster due to being smaller.
If the pipe fills up before the decoder is ready to take the data at the other end to be put on the screen by the DVD player then the pipe will begin to overflow (buffer overflow) which will cause the DVD player to have to drop frames to keep up with the data flow or may stop playing altogether.
This is the reason why it doesn't affect the actual picture quality and doesn't reduce macro blocks, but the actual picture stability. Macro blocks are what make up the image of a movie and are hard encoded into the movie and can't be removed, but can be made less evident by other decoding filters which which your DVD player uses.
I posted this because of Technos' constant advice of a 224 VBV buffersize which is to big for a standard VCD and is DVD standard. The MPEG standards state the best setting is 40 for standard VCD and should be plenty. I say standard because if you up the bitrate past about 1800kbps then the buffer size should be increased to about 112 and then past around 3500 increased to 224.
Who do you want to believe? The author of TMPGenc and the knowledge of respected experts or some jumped up school kid with a chip on his shoulder.
I hope you now understand why the buffer size Techno is stating could cause problems in your DVD player when playing VCD's.
> Does anyone know if I can some how change the speed of my avi when I convert > it to a mpeg? The avi that I have is real clear, but like in slow motion.
Was it originally slow? if so, There is no way to make it faster.
If the movie is not originally slow, and it became slow after the conversion
to MPEG, you have to check the setting/codecs you use, and make sure the AVI
can be played properly on your PC. Also depending on the file format and priority of codecs you are using, the result can be quite different.
BTW, I do not think what Techno says is solution for this matter.
I agree with ffast techno's advice won't have any effect and if he had any idea what it does then he probably wouldn't have suggested it in the first place.
But I'm sorry to have to disagree with you on one point ffast.
You can change the speed of an AVI by simply downloading this program http://www.divx-digest.com/software/avifrate.html and changing the framerate of the movie which it does without re-encoding.
But be advised this will desync the audio. This can be remedied using cool edit 2000.
Hi, I'm new to this, but I noticed that when I convert a long file, one that's about an hour and a half to two hours, it says it will take 1300 to 1400 MB. I noticed some of the other posts mention a way to make this 2 seperate files, so that you can put one on each CD. How do you make a large video file like that seperate so that the individual files can fit on CDs? Thanks a lot for your help.
For a future release of TMPGEnc, it would be nice if it could let you specify
a short text message that would be encoded as part of the MPG, in one of the
four corners of the frame. :) Anyone else agree?
To add watermarks, simply use any supported image formatted created in Photoshop as an Alpha-Channel overlay in any standard video editor program before compressing to AVI and then convert to Mpeg. Or, superimpose the graphic over the source frames before compressing the Mpeg. Either way works quite well.
Hi, I'm new to this, but I noticed that when I convert a long file, one that's about an hour and a half to two hours, it says it will take 1300 to 1400 MB. I noticed some of the other posts mention a way to make this 2 seperate files, so that you can put one on each CD. How do you make a large video file like that seperate so that the individual files can fit on CDs? Thanks a lot for your help.
Yes ac3 sound can't be opent in Tmpgenc but what I do is that I use Msgraph and render from mediafile option, then I just select wav dest filter and file write filter and the ac3 sound from a mpg or avi file will be extracted and unpacked to a WAV file that is 100% readable in tmpgenc (however it will take up some space though... maby 400-600mb)
Goto http://doom9.net and there should be a guide somewhere on how to use (and download) msgraph or under the Links goto purplemans site.
the problem is i can't find the page/link for it, could someone help me out ?
I mainly wanted to use TMPG to bring my avi/divx etc movie-collection into my living-room, like most of us here i assume...YET
after using tmpg on a test movie it took me about 16hrs++ (with filters activated though) on a AMD2Gig+, 512DDR, GeForce4 Ti 4400 system!
-> this cant be right, isnt it?!
while typing another test file is running through this time without filters! approx. 1 hr it says. Is that normal time-wise?
BUT to address my ultimate newbie problem:
Why couldnt my (not that old) DVD player not read my first homemade VCD? I used Uleads Movie Maker to convert and burn the TMPG-output MPEG-1 movie, into a Ntsc Vcd file.
I cant believe that it`s taht cumbersome to burn a lil`VCD.
I found, that if you use 16:9 output isn't compatible for all
>DVD / SVCD / VCD players
If you didn't do that, it could be you have a CD-R problem, maybe you need coated CD's.
Else ... I don't know, centaily when you used the standards of TMPGenc, which are basically appliable for all DVD-players, I really don't get it.
> BUT (again but :D )
As I always say, you've got to try and experiment a lot, be4 you get the feeling of what's right, wrong and capable. I have been experimenting over the last 6 months now and I still have 1 more thing to do be4 I can say:
>There's nothing left to experiment anymore
(subtitles, SVCD's, VCD's, X(S)VCD's & miniDVD R mine :D except for AC3 :'( )
so for now, happy testing, put the "Settings -> Video -> Aspect Ratio" on 4:3 and adjust the movie by cropping it.
>TIP: Don't do this to an VCD, cuz it's low resolution and it WON'T look as
>pretty as SVCD with cropping / letterboxing.
I hafta admit, that I really did a rush job (ignore the 16hrs waiting time:) when i first used TMPG!
I`m glad on the other hand that I found such a friendly and prof. forum to cover with potential sorrows...lol.
I will definetly indulge myself with further, thorough experiments from this time on, where I will consider the valuable points given by you!
does anyone know of a program that will make a avi out of vob"s and mux the audio in sync with the video,I have tried "dvd2avi gui" but there to many bugs..any suggestions would be great....thanx.....sherlock
Is it possible to restore a session (eg. conversion in progress) that was interrupted by, say, a crash?
For example, if I get 70% of the way through a conversion to VCD and Windows crashes (but that NEVER happens! ;) - is there a way to continue the conversion from that point?
If you can find out the number of the last encoded frame you can set the start frame in source range to the following frame and join the 2 files afterwards. Bit crude but it works
Load the already encoded part of the stream in tmpgenc and look under Setting -> Advanced -> Source range -> Move to end frame. The number of the frame is in the upper left of the box. This will only gives you the correct result if you dont have used inverse telecine.
i have downloaded divx4.12 and i still have no video when i preview it before burning the cd what do i need to do to change avi. to mepg1 and have it on dick to play in dvd player