one pass vbr in dvd2svcd didnt fill space

[_SPaRX_]

Lastnight i encoded sex and the city cds for my wife. My settings on teh bitrate tab were all cds set to 1 and size of 710mb. I did this because i am burning to a dvdr and that would make 3 disks with 6 episodes like orginal disks. max was 6000, min 300, max avg 6000.
Encoding tab i used One pass VBR, Image Quality 5, Q Factor 60, no anti-noise filter, automatic field order. Each episode is approx 30 minutes. The resulting files were all around 400-450mb each. That is not quite teh 710 i was shooting for. The good thing is, i when ahead an authored 3 of the episodes to a dvd-rw to check the quality and it was amazing VERY good. Now i just did the first dvd lastnight and i want to do the other 2 now. I want to be sure that i get teh same results that i did before. So can someone tell me why i set the file size to 710 and only got 400ish on One pass VBR?
I want to be sure that this is duplicated. I notice in the tool tip when you choose One pass it says something bout the resulting movie will be 1.5 cds. So does this mean that if you choose One pass VBR that your resulting file will be approx 2/3 what you set it to?

thanks in advance

SPaRx

[Holomatrix]

One pass VBR seems to be unreliable, you should set it at multipass one pass. One pass VBR output file size depends on the selected quality and movie you are encoding.

[UltimateDBZ]

I suggest you use CCE as well, if you happen to be using TMPGEnc.

[_SPaRX_]

i am using CCE, i forgot to mention that. I am going to keep my current settings for now to finish out this sex and the city collection. Then when i get to the Friends episodes my wife wants i will do some more experimenting. Just seems kinda odd that you put int 710mb and get 450mb. But oh well.. that just means i can get the entire set on 2 dvdrs instead of 3.

thanks sparx :)

[hoozdapimp]

since you said it looks great cce probably found that it didn't need more than 400 megs or so to make it look good...however this seems like a small size for a 30 minute show...based on a 400 meg file and a 30 minute show this only comes out to be around 2200 kb/sec?
i would do at least 2 pass and see if it doesn't come out better since you specified average to be 6000?

[_SPaRX_]

actually they are all avg aroune 2400-2500. This is comparable to svcd. So like i said.. the quality is very good. i was suprised as well. when i seen the file size i was pretty PO'ed... thought i was gonna have to encode it again. But when i burned it to a dvdrw and played it on the standalone, it looked very good. I didnt see any block noise or pixilization at all. this just means i am gonna fit alot more episodes on one dvdr then they had on the orginal dvd.. that is fine with me... i dont watch the show... my wife does ;)

sparx

[xp_eric]

with 1 pass VBR the encoder (regardless which one) can't prededict what bitrates to use for each scene to comply with your requested filesize and therefore you must al least use 2 or (better) 4 passes.

cheers,

:sly: Eric

[UltimateDBZ]

Originally posted by xp_eric
with 1 pass VBR the encoder (regardless which one) can't prededict what bitrates to use for each scene to comply with your requested filesize and therefore you must al least use 2 or (better) 4 passes.

cheers,

:sly: Eric Holomatrix already mentioned that. I believe sparx is aware that 2+ passes would do this job better, but considering the great amount of time he is saving by doing 1-pass, and since he is using DVDs, he can have a huge bitrate, so multiple passes is not necessary.