Michael_Lieberman
Active member
I'm considering a purchase of a dual-layer DVD burner for a feature I'm working on. Considering it holds somewhere around 8.4 gigs, would that be efficient in holding say, 100 minutes, if exported to Quicktime?
Dual Layer DVD output
- Thread starter Michael_Lieberman
- Start date
kitsu
Well-known member
Re: Dual Layer DVD output
Are you actually making a DVD (with clips encoded in mpeg2?), or do you just want to put Quicktime clips on there (files). I made an hour long dvd that had plenty of room to spare on a single layer disc, so I don't even know if you need dual layer for 100 mins.
Granted, with more space you can do less compression on the DVD, however if you plan to have it play on slower computers, they may have trouble keeping up with a high bit rate.
Also, the highest bit rate for Mpeg2 is 9.8 Mbps, and the highest for a DVD (with audio worked in) is 10.08 Mbps. The video shouldn't generally be higher than 8 Mbps though.
Check this out too: http://www.customflix.com/Special/AuthoringNightmares/03/BitsAndBytes.jsp
~Andrew
Are you actually making a DVD (with clips encoded in mpeg2?), or do you just want to put Quicktime clips on there (files). I made an hour long dvd that had plenty of room to spare on a single layer disc, so I don't even know if you need dual layer for 100 mins.
Granted, with more space you can do less compression on the DVD, however if you plan to have it play on slower computers, they may have trouble keeping up with a high bit rate.
Also, the highest bit rate for Mpeg2 is 9.8 Mbps, and the highest for a DVD (with audio worked in) is 10.08 Mbps. The video shouldn't generally be higher than 8 Mbps though.
Check this out too: http://www.customflix.com/Special/AuthoringNightmares/03/BitsAndBytes.jsp
~Andrew
Michael_Lieberman
Active member
Re: Dual Layer DVD output
Well, I'd like the 100 minutes (probably an Mpeg-2) to be compressed enough to be projected from a video projector and look relatively decent. Sorry for being vague, but I am still learning quite a bit about post-production. The link was quite helpful as well.
But by creating an Mpeg-2, does that compress the picture enough for a decent video projection?
Well, I'd like the 100 minutes (probably an Mpeg-2) to be compressed enough to be projected from a video projector and look relatively decent. Sorry for being vague, but I am still learning quite a bit about post-production. The link was quite helpful as well.
But by creating an Mpeg-2, does that compress the picture enough for a decent video projection?
Re: Dual Layer DVD output
In theory (and I may be off) you'll need 21 GB for 100 minutes of QT full DV file (which is the miniDV format). Compressing further as MPEG2 you can have almost 4 hours of video in Dual Layer. Your question about "decent" quality, well, keep in mind that MPEG2 is the compression format of DVDs and they look fairly good to me when projected. I guess all depends on your editing and compression settings.
In theory (and I may be off) you'll need 21 GB for 100 minutes of QT full DV file (which is the miniDV format). Compressing further as MPEG2 you can have almost 4 hours of video in Dual Layer. Your question about "decent" quality, well, keep in mind that MPEG2 is the compression format of DVDs and they look fairly good to me when projected. I guess all depends on your editing and compression settings.