How to check for regression problems?

Discussion in 'AnyDVD HD (DVD issues)' started by ggtop, Nov 11, 2017.

  1. ggtop

    ggtop Active Member

    Hi James,

    for the latest build you post
    I'd like to Support, but don't know where to start...
    Is there a list of problematic titles that are worth to check? Personally I keep all the final builds on my HDD to have the chance to revert back to a previous version if it's an older title to see if it worked before.
    Most of the time I also keep the rip as well so there normally is no need to rip a disc again.

    I guess it is mostly a lucky coincidence to find a title that worked in the past. At least for me.

    ggtop
     
  2. Clams

    Clams Well-Known Member

    Exactly. Just take note is all.

    -W
     
  3. FurryGuy

    FurryGuy Well-Known Member

    I keep all versions of AnyDVD I download.

    I have had a few discs in the past that had regression problems.

    I create a log file from the most recent version, official release or beta, and then keep uninstalling and installing earlier release versions until I no longer have problems. Make a log file with the older version and attach both files for James to look at.

    Yes, a bit of work, but it really does help the devs to see what went wrong.
     
    whatever_gong82 and Clams like this.
  4. ggtop

    ggtop Active Member

    Hi FurryGuy,

    you didn't get my point. I'm totally aware of the log file procedure. And I also keep old versions to be able to compare the results between them.
    What I was asking is a list of problematic titles that could potentially cause a regression issue.
    Of course I do not plan to rip thousands of DVDs just because o new beta is out to find a problem. But if it helps I could do a few if it helps. But then I would like to choose them wisely because they could be candidates for a regression issue becuase of their protection scheme.

    James fixes a new protection but breaks an old one. Just what we want to avoid, don't we?

    ggtop
     
  5. Yaris

    Yaris Well-Known Member

    When that rarely happens, James could release a specific fix for that one regression issue (provided a log file was supplied) and keep that specific fix out of the current releases as it won't help resolve any modern protections.
    A list would then make sense.
     
  6. FurryGuy

    FurryGuy Well-Known Member

    There is NO list, because of the nature of how often AnyDVD changes. James is kept very busy fixing new releases for both DVD and Blu-ray.

    You really expect him to test EVERY DVD he has to check for possible regression problems with each change he makes?
     
    whatever_gong82 likes this.
  7. ggtop

    ggtop Active Member

    How did you come to that conclusion?
    Why would James post to keep the heads up for regression issues if he already check all titles on earth in advance...

    Obviously James made changes to AnyDVD that could result in breaking the correct decrypting.
    And we (you, me, all others here using the beta) have now the chance to check that before the next release.
    Of course we could do nothing and raise a new issue for a title that worked before. Or check some titles NOW that could be influenced by the latest changes.
    The chance that future changes will break up the current change will increase. Don't you think?

    That's my point
     
  8. Clams

    Clams Well-Known Member

    Regression issues are dealt with as they come up. No one "goes looking for them" title by title,
    We all have better things to do as well.
    -W