133 min DVD-5 limit

[Khizhiy]

Can anyone please explain the following? The standard for DVD-5, which is a DVD-Video up to 4.7 Gb long, sets the limit for the duration of the movie to 133 minutes. I know that 4.7 Gb is enough to store a longer footage, say, in the 352x576 resolution. So, is it okay to brake the limit? What will I face if I brake it?

[futile]

I dunno where you got those numbers... I just authored 5 hours of DVD Quality video with AC3 5.1 to a 4.7Gig DVDR.. thats at 720x res

[swanside]

Futile,

how did you do that?

Cheers
Paul

[damnim]

Khizhiy

Your right to a point about the 133 minutes. But this is a "DVD Standard" for DVD-5's that the movie industry uses. They encode to bitrates of 9000kb maximum. DVD-9's are the same with respect to bitrate but can hold more because they are dual layered.

Your question " can I go over 133 minutes without problems?" Yes. Will you have an inferior picture if you put on 4 or 5 hours? Depends on how you do it. The physical nature of a DVD-R will not have any effect on the picture you burn to it. If you can encode 6 hours of decent looking video in say a VCD formatt and burn it, it won't matter to the decoder at all.

I currently am encoding 120-160+ at 720x480 at 3500-3700kb with excellent results. The new DVD-9's seem to all have movies on them going over 6gigs even when there stripped down to one audio and video.

I sometimes wonder if they don't do this on purpose to make it harder for us to back them up to 4.7g.

[mikk]

the truth is that 9.8 mbps maximum is not good enough for dvd. ever watched the bitrate of a movie and seen how many times it hits 9.8? and there are still plenty of mpeg artifacts.

i'm happy that there is a tendency to use higher bitrates and dual layer discs these day.

columbia tristar's superbit dvds are a good idea (highest video bitrate possible is used, but no extras). the extras should be put on a second disc though.

[mijman]

Professionals use a maximum of 9000 and minimum of 0 with a 5-pass VBR, I think. In order to get 2 hrs of movie on a disc, I need to encode at around 3300-3500, even at TMPGenc's maximum 2-pass vbr (which doubles an already long and tedious encode - I can't even imagine 5 pass!)
Futile must be encoding at close to VCD levels of video bitrate.