How long should it take to burn a dvd?

bob733 · Post by **bob733** » Thu Mar 20, 2008 10:54 pm

I am burning a dvd that will be just over a gig. It takes over an hour to burn. I have a powerful system and a 4x burner.

would it really help to buy a very fast dvd burner? Or, is is VS itself that is slow due to rendering very large files?

And if a burner will do the trick, how fast of one should i get and how much would it cut off my production time?

thanks

Bob

BTW... you hit the nail on the head... the finished movies 20 minutes long.

DVDDoug · Post by **DVDDoug** » Thu Mar 20, 2008 11:48 pm

Most of that time is probably rendering-time. In that case, a faster burner won't make much difference. (We usually recommend burning at about 4X anyway, because you can end-up with a flaky disc if you burn at high-speeds.)

Are you sure you only need 1GB on the DVD? ...That's only about 20 minutes of "DVD quality" MPEG-2.

The rendering time can vary from nearly zero if you are working with DVD-compliant MPEG-2 files, to all day if you are woking with DivX files.

If you are burning multiple copies, you can render once and "burn" the DVD folders (or an ISO image) onto your hard drive, and then make the DVDS from those folders.

...Someone should double-check this, but I think 4X is about what we would consider 1X. At 4X, it might take about 20 minutes to burn that 1GB/20 minute video. Just be aware that you can't really make that comparison because the amount of compression varies... Without knowing the bitrate, we can't say how big a 20-minute file is...

sjj1805 · Post by **sjj1805** » Fri Mar 21, 2008 12:20 am

Are you talking about the actual burn time or are you including the rendering time prior to burning?

A complete 4.3 GB Video DVD at 4x takes about 15 minutes to burn.
Rendering is a different kettle of fish - if the video is already DVD compliant it can be as little as 10 minutes, if it is a highly compressed format such as DivX it can take a whole day.

bob733 · Post by **bob733** » Fri Mar 21, 2008 2:53 am

Many of the input files (to be rendered) are very large (300 - 700/800 meg). Most of the files are jpeg's. Probably 50 60 or 70 pics.

The large files come from BluffTitler which I created using Uncompressed AVI (dont ask me why I just did it that way).

So, even though a lot of data (more than 2 or 3 gig for sure) went into the rendering, the final DVD was only just over a gig. Lots of compression going on evidently.

So, when I click BURN on the Share menu, I can come back in just over an hour and it is done.

Therefore, to answer you question, I guess the time (over an hour) includes the time it takes to render.

BOb