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DVDLab Pro and video formats
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k0k0m0
Senior Member
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17. June 2005 @ 14:30 |
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I'm using DVDLab Pro and I've encountered this same problem whether the movie is in PAL or NTSC. It appears everytime I add a movie to the asset box.
I'm using WinAvi to convert my files to MPEG-2 (eg for NTSC movie), am I doing something wrong that makes DVDLab Pro give me the same error msg everytime?
This message has been edited since posting. Last time this message was edited on 17. June 2005 @ 14:32
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AfterDawn Addict
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17. June 2005 @ 20:20 |
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352x240 is known as 1/4 D1, and although DVDLab will author them, they are not really standard, which is why you get the warning. Some players just can't play them (older Toshi and Panny are two that I know of).
On the mpeg2 tab, change it to read 720x480, and they'll be compliant, although you may lose some quality, and the filesize may be larger.
Black holes are where God divided by zero...
Cheers, Jim
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k0k0m0
Senior Member
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18. June 2005 @ 04:10 |
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So Jim what you suggest is convert all those to 720 X 480 Full D1 for NTSC and for PAL to 720 X 576 Full D1 ???
That's the only resolution I should use for both systems?
This message has been edited since posting. Last time this message was edited on 18. June 2005 @ 04:10
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k0k0m0
Senior Member
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18. June 2005 @ 08:30 |
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One further question, that it may be dumb perhaps...
I've got audio & video demuxed; I'm only resizing my 352x240 movies to 720x480, but I can leave audio intact, non?
Audio frequency already is at 48,000 and bitrate at 192,000.
I think nothing else has to be done regarding audio, but I just wanted to be sure in case I had to remux and then convert and then Demux (which I regard unnecesary according to my humble experience so far)
Can anyone confirm it? Thnx as usual
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k0k0m0
Senior Member
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18. June 2005 @ 09:53 |
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Ok... files are now at 720x480, I left the encode tab as shown above, and only changed on the MPEG tab the picture size.
But DVDLab Pro keeps on telling me that the file has an incorrect aspect ratio!?!?!? What am I doing wrong?
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AfterDawn Addict
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18. June 2005 @ 12:41 |
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720x480 is NTSC...did you perhaps want PAL?
Black holes are where God divided by zero...
Cheers, Jim
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k0k0m0
Senior Member
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18. June 2005 @ 18:39 |
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I'm sorry, perhaps I didn't make myself clear...
I'm on my NTSC project and got all movies in that resolution. But I still get that unspecified aspect ratio
I logged in on March 1st 2005, and it's incredible to believe that in so short time I've learnt all that I know about DVDs from this forum...
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k0k0m0
Senior Member
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19. June 2005 @ 04:33 |
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This is what Avicodec tells me about the specifications of the newly encoded movie
As you can see, it's now 720*480 with 4:3 and fps 29.97; clearly a letterbox 4:3 NTSC movie, isn't it?
But DVDLabPro still indicates it as a non-valid like the first picture of this thread... *puzzled*
Could it be, maybe, a problem with WinAVI MPEG-2 encoder???
I logged in on March 1st 2005, and it's incredible to believe that in so short time I've learnt all that I know about DVDs from this forum...
This message has been edited since posting. Last time this message was edited on 19. June 2005 @ 04:38
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AfterDawn Addict
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19. June 2005 @ 10:36 |
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Combined bitrate of audio and video exceeds dvd spec. (note your video bitrate is 9000kbps!)
Black holes are where God divided by zero...
Cheers, Jim
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k0k0m0
Senior Member
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19. June 2005 @ 15:54 |
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And which is the highest bitrate suggested? Why is 9K wrong?
I logged in on March 1st 2005, and it's incredible to believe that in so short time I've learnt all that I know about DVDs from this forum...
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AfterDawn Addict
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19. June 2005 @ 22:41 |
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On a commercial disk, 9000 may be acceptable, combined with 224kbps audio, and remain under 9500kbps.
On a burn, the lines on the disk are not so defined, and players cannot absorb that much data, decode it, and put it out to your TV.
In most cases, it is not recommended to exceed 9000kbps combined, and even then, probably 50% of today's players will choke on that.
The MPEG-2 codec (for DVD spec) allows for encoding between 1Mbps and 9.8Mbps. In practice 8Mbps is the maximum bit rate you should use, for 2 reasons ...
1.) You need to allow some bandwidth for audio, menus, and subtitles.
2.) Some DVD-video players will struggle to decode bit rates above 8Mbps (8000kbps).
Most commercial dvd's, use a bitrate between 5.5mpbs, and 6mpbs to maintain compatibility with the largest number of players.
Black holes are where God divided by zero...
Cheers, Jim
This message has been edited since posting. Last time this message was edited on 19. June 2005 @ 22:42
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k0k0m0
Senior Member
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20. June 2005 @ 04:14 |
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Gosh... I was not aware of how delicate it could be... wow... I'm gonna try to down that bitrate!
Thnx again Jim
Oh, by the way, I did some hometesting myself and I found out that I didn't get that nasty warning message from DVDLab Pro if I encoded with another program. I tried Adobe's (which is darn slow) for a short video (1 minute) and DVDLab Pro accepted it perfectly. Could it be WinAVI is not so good?
I logged in on March 1st 2005, and it's incredible to believe that in so short time I've learnt all that I know about DVDs from this forum...
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AfterDawn Addict
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20. June 2005 @ 06:39 |
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Now you've got the idea. Winavi has never been known to be "good".
You'd be better off using VSO DivX to DVD, and then importing the .vob's into dvdlab.
Black holes are where God divided by zero...
Cheers, Jim
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k0k0m0
Senior Member
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20. June 2005 @ 13:38 |
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Well, that was something I didn't know... you say can I import VOBs directly onto DVDLab Pro then?
I logged in on March 1st 2005, and it's incredible to believe that in so short time I've learnt all that I know about DVDs from this forum...
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AfterDawn Addict
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20. June 2005 @ 15:21 |
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Yes. DVDLab Pro will specifically ask for the first VOB of the actual movie. This is the ...1_1.VOB, and it will join, and Demux for you.
You're then free to add your menu's and chapters.
Black holes are where God divided by zero...
Cheers, Jim
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k0k0m0
Senior Member
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21. June 2005 @ 04:53 |
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Well, good to know that. I was not aware of it! It demuxes every movie it encounters on VOB's?
I logged in on March 1st 2005, and it's incredible to believe that in so short time I've learnt all that I know about DVDs from this forum...
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AfterDawn Addict
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21. June 2005 @ 07:50 |
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It demuxes everything.
You're better off to start with elementary streams to begin with.
Black holes are where God divided by zero...
Cheers, Jim
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Minion
AfterDawn Addict
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23. June 2005 @ 13:17 |
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I believe your Problem is you encoded these Files to Mpeg useing a 1:1 aspect Ratio which is Not supported in the DVD Specification, If these are Mpeg-2 files you can use a Program called "DVD Patcher" to Change the aspect ratio Flag in the Mpeg-2 file and then DVDLab will not give you the error or you can Start from scratch and Make sure you encode useing a 4:3 Aspect ratio....
I use the SIF/CIF 352+240 DVD Standard all the Time to make DVD"s and I have never gotten any sort of Message from DVDLab as the SIF DVD Standard is 100% DVD Compliant as Long as it Obeys all of the Other Rules for DVD Compliant Files ......
Cheers
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AfterDawn Addict
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23. June 2005 @ 13:56 |
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I thought of that, but according to the picture from avicodec, it's 4:3
Black holes are where God divided by zero...
Cheers, Jim
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Minion
AfterDawn Addict
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23. June 2005 @ 15:37 |
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I thought the Files were encoded to 352+240 useing the SIC/CIF standard but the AVICodec Screenshot you showed has it at 720+480??
Also the DVDLab Error message States that the Problem is the Aspect Ratio Flag is Neither 4:3 nor 16:9...
Are we taking about Two different sets of Files here??
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AfterDawn Addict
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23. June 2005 @ 17:46 |
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The original files were wrong.
He then re-encoded (at my suggestion to 720x480/4:3) and posted this:
"Ok... files are now at 720x480, I left the encode tab as shown above, and only changed on the MPEG tab the picture size.
But DVDLab Pro keeps on telling me that the file has an incorrect aspect ratio!?!?!? What am I doing wrong? "
I suspect that DVDLab cannot read the winavi output, as a compliant mpg. It may not be the wrong aspect, but dvdlab doesn't know what error to throw up (a huge fault of dvdlab might I say, it's error messages are ambiguous and/or totall wrong about half the time).
I then suggested using VSO to process the files, to see if it was winavi's fault.
No response since then, other than the question about demuxing/importing vobs into dvdlab.
(it's a bit like pulling teeth sometimes...)
Noticing that the bitrate is also excessive, I went and changed the subject (probably not a good thing), to correct that problem at the same time, to avoid yet another encoding session.
I guess what I should have said to begin with, is:
"go to start > control panel > add/remove programs > winavi, and hit the uninstall button... <wink>
Black holes are where God divided by zero...
Cheers, Jim
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Minion
AfterDawn Addict
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23. June 2005 @ 21:32 |
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Well Like I suggested before If you use a Tool called "DVD Patcher" you could Patch the Header in the Mpeg file to 4:3 or 16:9 which should make it so DVDLab can read the Aspect ratio flag in the Video stream....
I have used It before to Patch Headers and it has allways Worked and it is an effective way of Changeing Aspect ratios without re-encodeing the File....
Cheers
P-4 2.6ghz (Overclocked to 3.2ghz)
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k0k0m0
Senior Member
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24. June 2005 @ 04:25 |
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Hi guys...
I'm here, been terribly busy so I haven't showed up very much lately...
Jim has described the situation perfectly well.
I had these files at a 352x240 resolution and had that message while importing them to DVDLab Pro. Following his suggestion I changed them to 720x480, and DVDLab Pro kept giving me the same error msg.
I tried converting a short AVI to MPEG-2 with Adobe's encoder and curiously DVDLab Pro accepted the file without complaint, which led to me the suspicion of a problem with WinAVI (my previous encoder).
Jim also suggested using VSO DivxtoDVD and import VOB's, but I haven't had yet the time to do so.
Regarding the bitrate I forgot to paste a view of DVDLab Pro which tells me the bitarte is way much lower than what AVICodec showed here. In the example of the file which stated a bitrate of 9000, DVDLab Pro informed me that the average bitrate was around 3000 !?!?! How could it be??? BTW, I burnt a DVD+RW to test the project and on my stand alone player I had no problem whatsoever.
Now, I'm gonna try also Minion's suggestion and see what happens, won't hurt...
I'm gonna do some experiments at home during the weekend so I'll keep you posted about the results...
I logged in on March 1st 2005, and it's incredible to believe that in so short time I've learnt all that I know about DVDs from this forum...
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k0k0m0
Senior Member
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25. June 2005 @ 08:02 |
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OK... this is what I've learnt so far...
I've encoded an MPEG-2 movie with WinAVI (in this example I'm using a PAL movie).
This is what AVICodec shows about this movie.
As you can see, its bitrate is 9000 and the resolution 4:3
When I import it to DVDLab Pro, I get the typical error msg
And the asset window curiously indicates no resolution
I then open DVDpatcher and this program states that my file has a weird 8 = 0.000 aspect ratio.
I decide too to lower its bitrate to 5000. (btw, do you patch just the header or the entire file?, which is the difference?)
After it's patched I reopen the file with Avicodec, and the only change with picture 1 is the bitrate, resolution stays the same.
Now I reopen DVDLab Pro and import the file once more. It makes no complaint, and it recognizes the 4:3 resolution!!!
Alas, there's a problem with WinAVI that doesn't specify the resolution well...
I logged in on March 1st 2005, and it's incredible to believe that in so short time I've learnt all that I know about DVDs from this forum...
This message has been edited since posting. Last time this message was edited on 25. June 2005 @ 08:14
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Minion
AfterDawn Addict
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25. June 2005 @ 13:58 |
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Well it seems that "WinAVI" doesn"t write the Aspect Ratio Flag properly which happens sometimes, It is Situations like this were "DVD Patcher" really comes in handy...Generally you Just have to Patch the Header at the Beginning of the File so you don"t have to patch the Headers for the Whole File....
Well I"m glad it worked for you....
Cheers
PS: you should Maybe think of useing a Better Mpeg encoder Like Maybe the "MainConcept Encoder" which is allmost as Fast as WinAVI but produces much better Quality.....
P-4 2.6ghz (Overclocked to 3.2ghz)
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