and you were given lifetime updates for the lifetime of slysoft. We're not going to start the debates all over again. 80€ for 10 years is peanuts. You try living on 8€ a year to cover all your expenses. Won't last you long. Not everyone is a lifetimer again, but all the current customers rebought because they wanted / needed anydvd to work again, and because there's no match to it. Nothing lasts forever. We obviously want it to last the same length and even longer than slysoft did, but to be blunt there are no guarantees in life. Just as much as the staff can't guarantee they will never get shut down, neither can you that you'll live to see tomorrow (you might get a ruptured aneurysm in ur sleep). Then you'll see barely a few days of your lifetime.
It's a matter of if you support the project or not. AnyDVD just works.
Usually if a product that has lifetime support is discontinued, the customer still gets compensated by receiving a *comparable* product. I bought a video card from EVGA nine years ago with a lifetype warranty, and it really meant lifetime. When it was finally broken, even though it was no longer made, I was given a *comparable* video card. This is the way most people understand "lifetime warranty."
In your case, it wasn't so much your product was discontinued than your *company* was "discontinued," i.e. shut down. Some were upset because they later found out you weren't shut down at all, but came back and charged us all over again.
Yes, nothing is certain in life. But your line of business of making a quasi-legal product has *more uncertainty* than any typical business enterprise, wouldn't you say?
No product, legal or illegal, lasts forever. Windows XP was discontinued in 2014, and Windows 7 will soon be in 2020. That's why they were never given lifetime warranties since they were *expected* to go outdated. And that may be the case with AnyDVD. So, consider dropping lifetime warranty altogether and only give us limited warranty, like most other products. Just tell us upfront that the warranty/support only lasts 5-7 years or so, and in 5-7 years we will all need to pay for a new version. Create an half-price "upgrade version" of AnyDVD, just like Microsoft has half-price upgrade versions of Windows. You might end up making more money because (a) as you said, people would still think 5-7 years of service is a good deal, and (b) you would be guaranteed repeat buyers after 5-7 years.