combined bitrate of clip exceeding the upper limit of a dvd

[tvandang]

i have a dvd that i tried to rip using dvd decrypter and then use tmpgenc dvd author to create the video_ts folder. when i tried to start this process it prompted me that my combined video and audio bitrate(10248 kbps) exceeded 9.848 mbps(9848 kbps). on my harddrive i create a mp2 clip and it is only 3.2 gb which will fit on a dvd+r CD. how do i fix this? thanks!

tvandang

[Gurm]

You... lower the bitrate.

The maximum bitrate has nothing to do with the maximum filesize.

In fact, try to keep the combined bitrate under 8000, or you're gonna have trouble with certain standalone players.

- Gurm

[tvandang]

how do i lower the bitrate and what application can i use? thanks!

[bottle-necked]

First I would try to fix the problem without reencoding all that video.

I would start by checking out my individual streams. Find out what the actual video bitrate is. There are several ways of doing this. I suppose it's in vob format now. First thing comes to mind is to demux the vob(s), then import the video stream into TMPGEnc DVD Author like normal. It will tell you the bitrate. If it excepts the stream then that's 1 part down.

I would also find out the exact audio bitrate. It may be too high causing this problem in the first place. Demux then reencode the audio then take it into DVD Author in stream format along with your video stream.

Actually a fairly easy process. Deciding exactly how you want to do it is the hard part.

GOod luck

[jimmalenko]

Can I ask why you need to re-author if you have already ripped it ?

[bottle-necked]

He ripped the main movie only I suppose and not the menus and extras. Changing the file structure like this requires that either new menus be made or the movie configured to play without a menu. Either way an authorizing program is required (in some form) to create the necessary DVD file structure.

I think I explained that right?

[wulf109]

I get that message with TMPEG DVD Author,just ignore. Every disk I've made with that warning plays normally. What do you think the bitrate is on a superbit DVD.

[jimmalenko]

Yep you did.

I was curious as to why he was using TMPGEnc DVD Author - I know it can accept input from VOBs but I have always associated it with creating VOBs from MPEGs.

Another method could be to use IFOEdit to create VIDEO_TS.IFO and VTS_01_0.IFO for you. Then you can burn it. IFOEdit is very good at removing references to menus and titlesets and making the main movie autoplay amongst other things.

Or just use DVDShrink from the get-go if you wish to do movie only.

[bugster]

Go ahead and burn, it will probably be OK. Gurm says keep the bitrate below 8000, probably because DVDr is more difficult for player to read and using a lower bitrate is often advised because of this as it allows the player time to re-try.

The Max bitrate allowed for Video on a DVD is 9.8Mbps. The Max overall bitrate (Audio+Video+subpicture) is 10.08Mpbs

What do you think the bitrate is on a superbit DVD.

Still within the same specs or most DVD players would not be able to play it. The average bitrate on a commercial DVD is around 4Mbps. Superbit DVd's claim better quality by increasing this to a higher value, 6 or 7 Mbps maybe. They still cannot exceed the spec maximums.

[Gurm]

Correct. Superbit is still under 8MBit combined.

- Gurm

[SLK001]

You need to better explain exactly what you did (I can't tell if you re-encoded or not). If you just ripped the main movie off the commercial DVD, and want to burn this, then your problem is with DVD Author. Probably the MPEG2 header has 9.8Mbps as the nominal bitrate (when it really is not), and DVD Author is simply adding the "nominal BRs" together.

The "nominal bitrate" in an MPEG2 header is for informational use only, and shouldn't be relied upon for these types of decisions. You can have Bitrate Viewer find out what your real max BR is, then use RESTREAM to redo the header.

[Gazorgan]

It's a header issue. I have some streams that don't peak over 8 Mbps, but I get the 9800 warning message. In particular I get the message from DVDShrink rips, so it may be an issue with the transcoding output?