I can't understand...

[HDSN]

Hi

Could anyone explain the following doubt?

From a 90 min avi file (Xvid,mp3,VBR), I made two files:

1. Standart VCD (352 x 240, 29,97 fps, 1150 kbit/s, audio 224 kbit/s);
2. The second file I intended to fit it in a 700 mb disc, so with the DVDRHelp bitrate calculator, using an audio bitrate of 128 kbit/s, it got me 1074 kbit/s for the video (my final setting was 352 x 240, 29,97 fps, 1050 kbit/s, audio 128 kbit/s.

The both files were processed by TMPGEnc.

For my surprise the files were almost the same size :

File 1 = 926.832 KB
File 2 = 926.804 KB

Does anybody know what happen ?

Thanks

[BJ_M]

did you clear your project first before starting a new one ?

tmpgenc has been known to do this ..

[xtreemkareem]

He, he... I think I know what's going on - under TMPGenc for System tab for the template config, make sure that it's on MPEG-1 VideoCD (non-standard). If it's set for standard, it will end up being the same file size whetehr you do CQ, VBR, etc, even w/ a significantly lower audio and video bitrate. Ditch the MPEG-1 VideoCD setting and go with the non-standard setting. Then you should see some difference. Oh, and IMHO, anything below 160 kbps audio starts to sound funky... it's not as hi quality as MP3 so if you can, go w/ 160 kbps audio as 128 starts to get distorted and encode using 2-pass vbr or CQ using something like 1200 max 900 avg 300 min or 1200 max 300 min quality 70. Experiment and see what works for you.

[HDSN]

Ok, you got it !
The right setting is non-standart VCD, thanks
But I still have a doubt about DVDRHelp bitrate calculator.

With the following setting:

Video length : 88 min, 17 sec
Type :XVCD
CD : 1 x 80 min
Audio bitrate : 160 kbps

DVDRHelp bitrate calculator results 1065 kb/s for video.

Using the setting above, TMPGEnc generated a non-standart vcd file with 825.066 KB.
My question is : Shouldn’t this file be equal or smaller than 700 mb, to fit in a disc?

[Jukka]

No,

VCDs are written in Mode 2 (I think), which means that more can be put on a 700Mb CD than 700Mb! Although 825mb seems too much.

Jukka

[gmatov]

825 is not too much.

I have and do use DVDx, TMPGenc, DVD2SVCD, CCE and files from 747 meg when set to 70 minute CD-R size, 808 from some progs on 80 minute, 825 from one of them, even have some at 870 megs, all have burned no problem to 80 minute CDs.

These are multiple disk converts so will have 2 large and one smaller, not a screw up in the prog that made a too big file and a smaller one.

As long as you click make VCD-SVCD it will use the proper file system.

The worst that can happen is you have to select "Allow overburn".

Cheers,

George

[HDSN]

Great !!

Thank you all for reply.