Having never used vobblanker I'd thought I'd give it a try.
I pulled out a defective disk I had and ran it through vobblanker.
The disk was freezing in the early stages of chapter 3, I was able to get past the freeze by fast forwarding on my PC only, not my standalone. By doing so I was able to view the rest of the chapter and movie.
I know loaded the newly created files that vobblanker created only to discover that it modified that chapter, it removed everything from the freeze point to the end of the chapter, then continued playing the chapters as it should.
This is not at all acceptable to me, there were many important scenes removed that were needed to follow the plot of the movie. As mentioned I still was able to view the rest of the defective chapter on the defective disk, not so with the finished product of vobblanker.
I would like to know if others that used vobblanker had the same experience I did by removing the whole chapter, or is it possible that only a small segment can be removed and it just didn't do it in my test.
I even tried again with DVD Decrypter using 1x speed read, it failed.
Unless someone can advise me I did something wrong in using vobblanker (left defaults) where it removed the entire chapter, I stand by my original statement, nothing will fix a cycle redundancy error other than replacing with a new disk.