TMPGenc DVD Author 3 - quality

[Digitrash]

Does anyone know why TMPGenc DVD Author 3 sometimes would shrink the output when it's not necessary?
It does this regardless of the selected target size. I noticed this once in awhile. The issue is poorer quality than the original.

Current Example: I have a video DVD. The original video VOB files size are (3x1,048,574KB) and (1x639,668KB).
I started a new project in DVD Author 3 and it read the DVD. It created 1 work .dvddata file size (1x3,785,390KB).
Notice the size of the data file and the original are the same.
I went through the process of reauthoring the DVD. Since this is just a test to see the output, I use the standard menu template.
I event went as far as selecting the DVD-5 target size. DVD Author 3 created .VOB file size of (2x1,048,404KB) and (1x647,034KB). Basically, it shrank the DVD about 1/3.

I can't see where I can configure the software so that it doesn't shrink the output.

[Video Dude]

Unfortunately, there is no way to turn it off.

The last version of TMPGEnc DVD Author that does not force a re-encode or transcode is version 1.6.

[setarip_old]

@Digitrash

Hi!

Read the following thread (and additional links provided in some of the posts to that thread) to learn how to overcome this problem:

http://forum.doom9.org/showthread.php?p=966621#post966621

(Although the thread refers to v.2.xxx, it is also applicable to v.3.xxx)

(You might also want to read the several post by "zoinsberg" earlier in that thread)

[foxyshadis]

Sadly, those instructions will only help while encoding the original streams; ripping them off a DVD it's much too late for that.

You'll have to use another authoring software since your vobs have open gop.