TMPGEnc Plus Question

[trgrocker]

hi

after using convert avi (700mb) to dvd format the file size increase up to 1Gb ++ , is this normal or do i need another tool to trim the file down, i need to burn up to 6 avi file to dvd ,
with TMPGEnc Plus it only can burn 3 avi file only ..

any idea what wrong here ?

tq

[jagabo]

file size = bitrate * running time.

[trgrocker]

so what that mean

[guns1inger]

A 700mb file, at a guess, has a running time of around 90 - 120 minutes. You can get, with reasonable quality, 120 minutes to a single layer DVD. You can stretch this to 3 hours at acceptable quality with a good quality source to work from. You want to put 6 of these on a disc.

Buy a Divx certified DVD player and burn 6 avi files to a data disc. Or stop being cheap and put 1 movie to a disc.

[guns1inger]

file size = bitrate * running time

so what that mean

It is simple math and a universal truth about video encoding - possibly one of the few. No matter what codec you use - mpeg1, mpeg2, mpeg4, etc - the size of the output is determined by the running time (length) of the video, multiplied by the bitrate you use to encode it.

Bitrate is also related to quality. You can get a lot of video on a disc by using a very low bitrate, however as you reduce bitrate, so you eventually reduce quality.

Use a bitrate calculator (you can find one here -> https://www.videohelp.com/calc.htm ) to determine what bitrate you need to fit your movies onto your disc. Enter the combined runtime of all the files you want to make fit, and it will tell you what bitrate to use in tmpgenc. You may have to unlock the template in tmpgenc to enter one low enough for what you are trying to do, as tmpgenc will probably look at you as if you are mad (and rightly so).

[jagabo]

Or just forget bitrate. Use TMPGEnc Plus in Constant Quality mode, pick a quality you can live with (85 percent?) and encode. Then put as many movies on a DVD as will fit.

Your sources are probably Divx or Xvid (MPEG 4). MPEG 2 (for DVD) isn't as good at comressing video as MPEG 4. So you will end up with files 2 to 4 times larger if you want to maintain the same picture quality.

[TBoneit]

As guns1inger said if you feel you really need to get more than one movie on a disc get a Divx Player. Then you can get six 700mb vids on one DVD.

OTOH at 28 cents for a good brand like Verbatim per disc when on sale. Or to put it another way if the video isn't worth using a 28 cent disc on is it worth spending the time , encoding, authoring and burning?

I my self do one video per disc. Later on when you get a good TV your eyes will thank you.

I say this from experience. I have to now redo some DVDs I did in my early days as they look like *(&^)&* on my new TV. Keep in mind at that time a blank disc was Dollars per and the Burner was over $400.