Is this SVCD or xSVCD?

[2pac]

I used a SVCD ntsc template in TMPGenc, changed [rate control mode]: 2-pass variable bitrate (vbr), Average bitrate: 1150, Maximum bitrate 2520, and [motion search accuracy]: HIGH QUALITY. Is it still a standard SVCD or a xSVCD?

[vitualis]

On the face of it, it is still a standard SVCD.

It will become a non-standard SVCD (or XSVCD) if you go above the maximum bitrate or change the framesize.

Regards.

[2pac]

ok, thx for the confirmation.

[Vejita-sama]

Actually it's an xSVCD because you encoded it with a non-standard bitrate. To make an xSVCD all you need do is change anything from the white book standard. You can raise or lower the bitrate, if it's non-standard it's an xSVCD.

There's a common misuderstanding that a xVCD is better than a VCD. This isn't true, it's just not following the VCD white book standard. I could lower the bitrate to 300kbit/s to make a xVCD with 129min on it, but it will look like crap Or I could raise the bitrate to 3000kbit/s and only get 33min, and (from a DVD/DV source) look great.

[dec0n]

Doesn't 2520 for the maximum bitrate still fall within the SVCD standard?
I'm pretty sure its just a standard SVCD.

[vitualis]

Vejita-sama,

A SVCD allows for a max. video bitrate of ~2500kbit/s for MPEG-2 video. This can be CBR or VBR encoding.

The average bitrate can be anything you like as long as it is less than the max. bitrate.

If all 2pac did was load the SVCD template and adjust the settings to what he posted, it is still definitely SVCD compatible.

Regards.

[2pac]

Now I'm confused, lol. WHo's right... Vejita-sama or vitualis?

[Kdiddy]

Why are you confused??..did you look at any of the info that this website provided??...you answer can be specifically found here

http://www.vcdhelp.com/svcd.htm

[digvid]

2pac -

From the information listed about the SVCD template and the file you encoded, it is still a compliant SVCD. I own a copy of the Philips SVCD 1.0 standards manual, and I can say at least that the parameters you mentioned don't take your file outside the "window of compliance" for SVCD.

- digvid

[2pac]

Well, the info on this site about the specifications for the standard svcd is variable up to 2600kb/s, but the svcd ntsc template that came with TMPGenc is 2520kb/s. Since it is under 2600kb/s, I thought it was xsvcd. So, what do ya'll think?

And how much bitrates should I put for 2-pass (vbr) for average/maximum bitrate?

[vitualis]

<TABLE BORDER=0 ALIGN=CENTER WIDTH=85%><TR><TD><font size=-1>Quote:</font><HR size=1 color=black></TD></TR><TR><TD><FONT SIZE=-1><BLOCKQUOTE>
On 2001-09-06 05:32:00, 2pac wrote:
Well, the info on this site about the specifications for the standard svcd is variable up to 2600kb/s, but the svcd ntsc template that came with TMPGenc is 2520kb/s. Since it is under 2600kb/s, I thought it was xsvcd. So, what do ya'll think? </BLOCKQUOTE></FONT></TD></TR><TR><TD><HR size=1 color=black></TD></TR></TABLE>

Up to means that everything less than it is included.

Thus anything with a max bitrate less than ~2600kbit/sec is okay. Your settings has a max bitrate less than this. Thus, it is within SVCD specs.

You are not creating an XSVCD.

<TABLE BORDER=0 ALIGN=CENTER WIDTH=85%><TR><TD><font size=-1>Quote:</font><HR size=1 color=black></TD></TR><TR><TD><FONT SIZE=-1><BLOCKQUOTE>And how much bitrates should I put for 2-pass (vbr) for average/maximum bitrate?
</BLOCKQUOTE></FONT></TD></TR><TR><TD><HR size=1 color=black></TD></TR></TABLE>

It will ultimately depend on you and what you are making, but I personally think that if you encoding anything with an average bitrate less than 1700-1800kbit/s for SVCD, then you will be missing the quality benefits offered by SVCD.

Regards.

[2pac]

Ok, thx! I'm happy with my setting, I just wanna make sure it's not an xSVCD. I wanna go original.. hahaha.