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DVD Shrink 3.2 Quality Enhancement:

Adaptive Error Compensation or "AEC" as it is more commonly known is a quality enhancement feature released in DVD Shrink 3.2.

Although at high compression 30%+ (70% or less on slider) using AEC will provide better output results but better results come at a price - Time. The AEC settings love using up your CPU's juice. If you have a slow computer then it may take you a substantial while longer to make a backup, although (in my opinion) it is worth the wait. If you do not use the AEC settings your backup will be completed a lot sooner and you will yield similar results to version 3.1.7.6.

So which one to pick?

nwg gives this advice:


Using AEC under any setting is better than not using it. Max Sharp is the fastest, while Max smooth is the slowest.

I have found the default AEC setting is fine for most DVD's.

Max smoothness can be good when having around 50% compression. It can reduce or stop the pulsing/pumping effect that can appear from using too much compression.

The AEC is not normally activated at it full effect until below 80% on the compression slider. Max smoothness is activated all the time when it is chosen.
jellybean has suggested this rule-of-thumb guide for the AEC setting on various compression levels:


90-99.9% - Max Sharp

80-90% - Default Sharp

65-80% - Smooth

<65% - Max Smooth

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Sorry that is the name.

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