800 mpeg2 too big to burn on 80min cd?

[prey]

hi all

just getting into a lil bit of a problem here. after encoding with tmpgenc i have gotten a 790meg mpeg2 file. However, i believe it is not mpeg2 compliant as my max bitrate is larger than 2800, and my audio has not been downsampled.

okay details:
(2-pass encoding)
max vid bitrate: 3500
average: 2200
min: 500

audio: 160

now when i use nero to burn it, i click on svcd icon on the left, unclick the mpeg2 compliant box, and finally drag the file in. however, after it reads my file it shows on the bottom that it exceeds 80min by A LOT! kinda way off scale...

why is that? i thought a 800meg mpeg2 file can fit on 80 min cd?

any advice is great! thanks in advance

cheers

[NeWcS]

The first thing i'd say and everyone reading this should take my advice....NERO SUCKS FOR DOING VIDEO!!!!!!!!! . Load your mpg into vcdimager(GUI) and make a bin/cue and burn it w/ CDRWin.

For example: My brother d/l'ed that 'Steve-O dont try this at home' movie, Burned it with NERO and.........The picture was crappy, it macro blocked through the whole movie. I used vcdimager
c:/ vcdxgen moviename.mpg
Edited the videocd.xml to SVCD 1.0
c:/ vcdxbuild -c moviename.cue -b moviename.bin videocd.xml

Came out perfect!!!!! So that just backs-up my claim that NERO sux for doing video!!!!

Learn to use vcdimager or even vcdimagerGUI and use CDRWin to burn, you wont be sorry.

I know alot of what I said doesnt really pertain to what you were saying but try another program and see.

-Hope this helps

[auenf]

Originally posted by prey
hi all

just getting into a lil bit of a problem here. after encoding with tmpgenc i have gotten a 790meg mpeg2 file. However, i believe it is not mpeg2 compliant as my max bitrate is larger than 2800, and my audio has not been downsampled.

okay details:
(2-pass encoding)
max vid bitrate: 3500
average: 2200
min: 500

audio: 160

now when i use nero to burn it, i click on svcd icon on the left, unclick the mpeg2 compliant box, and finally drag the file in. however, after it reads my file it shows on the bottom that it exceeds 80min by A LOT! kinda way off scale...

why is that? i thought a 800meg mpeg2 file can fit on 80 min cd?

any advice is great! thanks in advance

cheers

you can fit 80 mins of SVCD on a 80 min CD-R if you use 1.15mbit, if you use 2.2, you can only fit half as much on the disc, understand?

Enf...

[VJWitness]

Hi,

you can only burn slightly over 800 MB on an SVCD by meeting all SVCD restrictions. If you don´t meet the restrictions, NERO will not be able to burn the SVCD structure and provides only 700 MB on an 80 min CD-R (+ overburn). You´ll have to reencode the *.MPG or split it into two smaller parts.

By the way: VCDIMAGER is RUBBISH. Set-top-boxes may refuse to take VCDs made by the VCDIMAGER. NERO is the greatest CD-burning software available and everyone who complains about it´s abilities is only not able to operate it properly...
:cool:


Bye,
VJWITNESS

[matrix]

Don't use that crap (Nero) to burn your movies.
Give this (http://www.webattack.com/get/vcdeasy.shtml) a try.
You can author your movie the way you want, it comes with cdrdao wich can burn it, and it's free.
790Mb it's nothing for it. It only gave me problems when the file was over 807Mb. But it creates the image even if it's 830Mb, and then you can use Daemon tools to mount the image, and another prg. to copy disk to disk. (like clone cd)

Edit.

Or the latest here. (http://www.afterdawn.com/software/video_software/video_tools/vcdeasy.cfm)

[VJWitness]

Hi Matrix,

the problem is not the size, but the restrictions (here: bitrate). Nero doesn´t allow you to burn MPEGS that are violating the SVCD restrictions on SVCDs to prevent problems that might (but not must)occur with stand-alone-players. That´s all. BTW: NERO does a great job!

Bye,
VJWitness

[matrix]

Well, according to your initial affirmation
now when i use nero to burn it, i click on svcd icon on the left, unclick the mpeg2 compliant box, and finally drag the file in. however, after it reads my file it shows on the bottom that it exceeds 80min by A LOT! kinda way off scale...
I supposed it was the size that prevented it from burning.
So I suggested the best tool out there.

Edit.

Just noticed.
@VJWitness

It wasn't you who started the thread.

[jshumate]

First of all to be kind of pedantic, I know what you mean, but you
really shouldn't say "MPEG-2 compliant". What you mean is "SVCD
compliant". Remember, DVD uses MPEG-2 also.

Now, this is what I think happened. TMPGenc is notorious for going way
above the maximum bit rate you tell it to use, hence an average bit rate of 2200 and a high of 3500 or whatever you said it was. When you
re-encode, most encoders do NOT reset the average bit rate flag in the
video stream. I suspect that this has happened in your video. For
example, let's say you used TMPGenc to encode a video stream that was
originally at 4400. Although it has now been encoded to an average
bit rate of 2200, the flag in the stream still says 4400. Nero reads
this flag as it is what it uses to determine if your video is "SVCD
compliant" or not. This is kind of a kludge as I have video streams
that are not compliant that Nero will pass because the average bit rate
is < 2600. There is a fix for this, if it is your problem, but it's
not free :-( The Teco bit rate viewer (http://www.tecoltd.com) has
the ability to take a demuxed video stream and change the value of
the average bit rate. You would use it to open the TMPGenc encoded
stream and it will show you both the old average bit rate and the
new one. Click on the new one and it will overwrite the value in
the stream and then save it. What you get you can re-mux and then
feed to Nero and it should pass it as compliant and let you use
the 800 MB on your CD-R. Do NOT get the free version of the Bit Rate
Viewer. Only the commercial one allows you to change things in the
video stream. I think it sells for 29 Euros, which is a little more
than 29 dollars US these days.