Max length for a VBR SVCD

[markadamwood]

Hi,

Just a query, I have been converting DVD to VCD for a while and have been converting to SVCD for a couple of months.

The quality of a 2 Pass VBR at Highest quality in TMPGENC is awesome.

My question is whats the max length I can have for a SVCD whilst retaining good quality?

I have shyed a way from doing over 50 mins as the audio went out of sync. Is this common?

All my movies less than 50mins per disk have been fine. Yes I know to convert just the movie and not the titles etc.

[fantomlord]

there's no real good answer to this question...it kind of depends on the source file--how much action, etc.
in general, however, 50-60 minutes is about the threshold for quality.
I've never had a problem with sync over a certain amount of time.
maybe somebody else has seen this before.

[Jaspa]

i think anomoprh movies withz a aspect ratio 2.35:1 and pal, resized with fitcd and the tv oversceen set to 2, i can put 60 min of an movie like matrix or blade with good qiality on one 700MB Cd´r.

4:3 movies, are different, because there is much more information, for encoding, so i think with multipass encoding, you can put max 50min with good quality on one cd.
Audio i set always to 160kb/s Joint Stereo.

I use DVD2SVCD Build 1.0.9
FitCD
cinema craft encoder 2.5

[adam]

I agree that around 50-60 mins should be the cutoff point.

Regading desync past 50 mins...I do not that this is caused simply because your playtime is this long, its just that you are apparantly experiencing a progressive desync, so that the desync only becomes noticable after you have watched enough of the movie.

If you are not multiplexing with bbmpeg then start. Most sync problems in svcds can be solved by doing this, as I have yet to find another SVCD multiplexor which works consistently.

In the end this could just be a limitation of your dvd player. I know that some Philips players do strange things when the playtime exceeds ~50. Also I-Author's multiplexor can cause desync beyond 45mins or so on some dvd players. This happens on my Apex AD600a.