AVI's increasing in size?

Sferics · Post by **Sferics** » Mon Mar 17, 2008 10:13 pm

I am new to DVD authoring and have been trying to put several AVI files onto a DVD using Sonic MyDVD. I am also trying to create a menu so I can select which of the files I want to view when I play it in my DVD player. Each of the files is about 180 MB in size, but when I put them on the DVD project, they balloon to over 400 MB, and now I am unable to put all the files I want to on the DVD.

Does the conversion of an AVI to a DVD-ready format do this, or is there something I am missing? Any help would be appreciated.

Post by **odditude** » Mon Mar 17, 2008 10:46 pm

DVD-Video is encoded in a specific format, the size of which is wholly dependent on the length of the video. The filesize (and compression formats, etc) of the source will not affect the size of the DVD-encoded output. (In reality, it's slightly more complicated than this, but for most purposes it's close enough.)

This is highly similar to an audio CD - an audio track from an uncompressed WAV file will take no more space on the disc then if the track were created from an MP3 of the same source.

Sferics · Post by **Sferics** » Mon Mar 17, 2008 11:21 pm

So what could I do to make it fit? Decrease the quality? Or would that matter since DVD-Video size is dependent on the length?

funkyass · Post by **funkyass** » Mon Mar 17, 2008 11:46 pm

get a bigger dvd.

Sferics · Post by **Sferics** » Tue Mar 18, 2008 12:20 am

I'm using a standard 4.7 GB DVD, and I'd like to stick with that if it's possible.

I am trying to put the first Saga of Dragon Ball on this DVD, and if Funimation could make it fit, why can't I? Or were they using a bigger DVD?

whicker · Post by **whicker** » Tue Mar 18, 2008 1:19 am

Sferics wrote:I'm using a standard 4.7 GB DVD, and I'd like to stick with that if it's possible.

I am trying to put the first Saga of Dragon Ball on this DVD, and if Funimation could make it fit, why can't I? Or were they using a bigger DVD?

That's easy. You just chop out the more controversial segments.

LobStar · Post by **LobStar** » Tue Mar 18, 2008 5:35 am

You can use Tovid to automagically give you the correct bit rate and some pretty good compression settings to get the most onto a dvd at the highest quality possible. MPEG2 is a much less advanced compression format than MPEG4, so yes, the file sizes will balloon.

Tovid homepage:
http://tovid.wikia.com/wiki/Main_Page

Post by **Nach** » Tue Mar 18, 2008 6:15 am

Sferics wrote:I'm using a standard 4.7 GB DVD

Doesn't exist. You mean 4.4 GB, despite what it might be labeled.

franpa · Post by **franpa** » Tue Mar 18, 2008 6:34 am

Sferics wrote:I'm using a standard 4.7 GB DVD, and I'd like to stick with that if it's possible.

I am trying to put the first Saga of Dragon Ball on this DVD, and if Funimation could make it fit, why can't I? Or were they using a bigger DVD?

pretty much everything on dvd is put on a dual layer disc. use dvdfab or dvdshrink (the latter is much older) to srhink (reduce quality) the dvd so that it fits on a standard dvd. on a normal tv it is hard to see the difference.

Gil_Hamilton · Post by **Gil_Hamilton** » Tue Mar 18, 2008 7:32 am

Sferics wrote:So what could I do to make it fit? Decrease the quality? Or would that matter since DVD-Video size is dependent on the length?

Reducing quality would help.

It's only loosely based on length. Since obviously, 10 seconds of MPEG2 at a given quality level will be larger than 8 seconds of MPEG2 at the same quality level.

franpa · Post by **franpa** » Tue Mar 18, 2008 8:42 am

uh 8 seconds of mpeg2 at the same quality as a 2 sec one would = more (same degree of compression)

Gil_Hamilton · Post by **Gil_Hamilton** » Tue Mar 18, 2008 9:11 am

franpa wrote:uh 8 seconds of mpeg2 at the same quality as a 2 sec one would = more (same degree of compression)

And your point is? Just because I used 8 and 10 instead of 8 and 2 doesn't mean my example is somehow invalid.

sweener2001 · Post by **sweener2001** » Tue Mar 18, 2008 10:38 am

i think franpa is an escaped mental patient

Post by **grinvader** » Tue Mar 18, 2008 6:48 pm

I think he totally didn't fail at substracting 8 from 10, but kinda forgot what he intended to do with that result... not enough RAM ?

Deathlike2 · Post by **Deathlike2** » Tue Mar 18, 2008 6:53 pm

grinvader wrote:I think he totally didn't fail at substracting 8 from 10, but kinda forgot what he intended to do with that result... not enough RAM ?

PIPELINE STALL, FLUSH CACHE.

SquareHead · Post by **SquareHead** » Sat Mar 29, 2008 8:51 pm

I dont even bother with converting downloaded content to dvd anymore. Wal-mart had uber cheap (around $40) DVD players that play divx content. I just burn them to a data dvd and play them from there.