Set LOWER compression ratio

[cuppat]

Does anyone know how to set the lower limit of compression in DVDShrink?

When I compile 2 movies to fit on 1 disc, the total size is usually slightly exceeding disc space, using the lowest allowable compression ratio in custom ratio.

It seems that DVDshrink arbitarily pick a lower limit. Is there a way to override it? I can't seem to find any settings controlling that.

Currently, I deal with it by recompressing one of the movies a second time, which of course results in very poor quality. I wonder why DVDshrink won't allow more aggressive compression settings.

For example:
A. Compress to 41.3% (lowest allowed), then compress again to 80% of the previous compressed version.
B. Compress to 39.5%

Method B is far less distorted and I can't seem to convince DVDshrink to allow me to.

[Lagoon]

No you can't , DVDShrink can only remove that much from the source, which depends on the source.

You have to shrink it twice.

[cuppat]

I wonder if this is due to the limitatons of DVDShrink implementation, or the nature of compressing VOB.

[nwg]

I wonder if this is due to the limitatons of DVDShrink implementation, or the nature of compressing VOB.

It is due to the compression algorithm used.

[cuppat]

Thanks, Lagoon and NWG!

[begu]

You could use instantcopy 8, I have actually bought the ic8, because it has the ability to go smaller in output than shrink 3.2. Also someone here has posted, that the ic8 output quite high quality too. I'm doing some tests in a few days, to check which one produces better quality, ic8 or shrink. I will test below 60% and above 70% of original size for both.

The new shrink is pretty good. Did tests using different AEC and compared the results to the rebuilder with CCE basic (2pass) output. Both did have the same amount of bytes for the actual movie. The tested disc was Indiana Jones 1 (lost arc) and it really hard to tell wich is better. Maybe the CCE, but it depends on the scene, sometimes the shrink looks better. The reduction % was 59. The CCE does have slightly less 'pumping effect' in quality (sharpness). It is difficult to describe, but the shrink has very minor pumps in film grains etc. Like the sequnce of the PBB frames, I'm not sure. But it is better than in old shrink 317, that had lower quality that the 320. Will test the ic8 (same movie and same 59%) soon.

And a slight offtopic, the xvid encode (full res, no resize, just crop) using the same size for the movie (same bitrate for xvid, cce, shrink an ic8, no bframes, no qpel, no gmc, mpeg quantization, adaptive quantization, oher settings default). The result is pretty good, the most constant quality! Maybe the sharpness is not so good, but the overall quality is good and it constant too, wich is important, i think.