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You are here: MacNN Forums > Our Archives > General Archives > Digital Video & Audio Archives > How many hours of video can a DVD hold?

 
How many hours of video can a DVD hold?
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Grizzled Veteran
Join Date: Dec 2001
Location: nyc
Status: Offline
Oct 30, 2003, 12:58 AM
 
It can hold six hours of video right?

iDVd just limits it to 90 minutes right?

But with DVD studio Pro 2 you can get 6 hours?

But how many hourse would you recommend putting on a DVD?

It seems that 2 hours sounds right and anything over that the video resolution might have to be sacrificed.

I'm asking this because my friend wants to start a video to DVD business and he was asking me if he should get a mac.
     
Mac Enthusiast
Join Date: May 2002
Location: Germany
Status: Offline
Oct 30, 2003, 02:28 AM
 
Originally posted by Mallrat:
It can hold six hours of video right?

iDVd just limits it to 90 minutes right?

But with DVD studio Pro 2 you can get 6 hours?

But how many hourse would you recommend putting on a DVD?

It seems that 2 hours sounds right and anything over that the video resolution might have to be sacrificed.

I'm asking this because my friend wants to start a video to DVD business and he was asking me if he should get a mac.
yes.no.yes.maybe.no.... VERY difficult to answer your questions, because you mix a lot up:

a comemrcial dvd is double layered, which means on ONE side it has TWO layers of data! the dvd-r you can buy and burn with a dvd-bruner are SINGLE sided, this is why they just fit 4,4,Gb (this is/was a kind of hardware copy protection )

now, Gigs DOESN'T equal time!
an example: you film a plain green wall… for hours 8i don't know, why you are doing this, but, you did it...) - finally, for a dvd you have to compress this "movie" of plain green - you will find out, your movie has just a few KILObytes!! - on the other hand, you film you kids playing soccer - everybody is running around, shakey camera, dark shadows&plain sunshine... movie is 3min = 800 MEGAbytes ???
why?
to compress such a "complex" (your kids are complex!) is very difficult, comrpession rate is very low (don't ask me for details - just believe me).

iDVD
standard length is 60 (sixty) min, in a lower quality 90min. the compressor has a dumb-algorithm which cares, that ANY kind of movie will fit on a dvd-r.
with DVD pro you can master 22 hour long movies - but you can burn them!! the final result has to fit on a 4,4Gb dvd-r..-
so, using a specialized compressor will give you better results - but these prg are difficult to handle! the trailers you can watch at apple.com are done by professionals

btw: dvdpro has a very high learning curve, even .2 has in "beginner mode" gazillions of features you have to learn...

why a mac? because it is very easy:
edit (iMovie is ... very easy, but result sare sometimes... very easy ), but FCE is GREAT!!
iDVD is SO intuitive!

question:
a fictional movie does need 60, 90, 120 min - but what kind of movies your friend is planing do produce?? a wise guy once said: less is more!

when he's buying a G5 + FCE (camera etc.etc) he has everything for a very good start...-
     
Forum Regular
Join Date: Mar 2000
Location: A drip off Lake Michigan
Status: Offline
Nov 2, 2003, 06:58 PM
 
If you are going to put that much video on a General format DVD, then you'll want to encode using MPEG-1, not the MPEG-2 more commonly associated with DVD.

According to the DVDSP manual, the bitrate and dimensions of MPEG-1 for VCD also fits the DVD spec--that is, a 352x240 with up to 1.8Mbps (or somewhere around there) MPEG-1 video stream is legal for DVD authoring, but you'll need to make the audio 48kHz instead of 44.1kHz.

You can even bump up the bit rate for the Video. I commonly use 2.5Mbps.

Hope that helps.
--ted
     
Mac Elite
Join Date: Jan 2003
Status: Offline
Nov 3, 2003, 02:41 PM
 
about 2 hours max because tthe compression required to get that much video on the DVD makes the video start to look fuzzy.

60 minutes high quality.
     
 
   
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