Compression and Re-authoring

By gerardosmith

CSS copy-protection is not the only hurdle you will encounter when trying to backup a commercial DVD. Many commercial DVD’s are dual layer (greater than 4.38GB) which cannot fit on the single layer (4.38GB max) media that is the norm today. This is where compression (a.k.a. transcoding) and re-authoring software (such as 1Click DVD) come into play.
There are different methods to backup a dual layer commercial DVD; one method is to re-author the movie by stripping out the extra features, menus, or any extra sound tracks that you do not need (for example French or Spanish). Depending on the length of the movie this will either keep the original quality level of the DVD or dramatically reduce the compression needed. The other method is to back-up the entire DVD. Although this will require a higher level of compression and a larger loss of quality, there are some people that do not mind the quality loss in favour of keeping the entire DVD with all of its features intact. 1Click DVD allows you to choose whichever method best suits your needs.

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