Keydb

Brsf96 Posts: 2 Joined: Sun Jan 26, 2025 6:47 am Expired license key, missing AACS key, or bad UHD? I successfully ripped a Blu-ray disk yesterday, but when I tried a UHD disk tonight, I got an error that "the volume key is unknown for this disc". I'm new to MakeMKV so I don't know if this is an AACS issue (the movie is from 2022 though and I couldn't find other postings about the movie),an MakeMKV license key issue (which may or may not have expired two days ago depending on the difference between "evaluation expires" and "version expires"),an issue with the disk (although I made sure it was pristine - no prints, smudges, scratches, or dust), oran issue with my drive (Archgon MD-8107S-U3YC-UHD).The reason I might question my drive is that it's brand new but wouldn't flash with the LG slim BU40N image ("HL-DT-ST-BD-RE_BU40N-1.03-NM00000-211810241934.bin") via SDFtool. It worked fine via the command line though. (Maybe I didn't run SDFtool as an admin? I don't remember.) And, yes, I had the drive plugged into a secondary adapter so it had plenty of power.For whatever it's worth, I've attached the AACS dump file. I'd appreciate any suggestions people might have. Thanks. Clipboard01.png (95.87 KiB) Viewed 555 times Woodstock Posts: 10497 Joined: Sun Jul 24, 2011 11:21 pm Re: Expired license key, missing AACS key, or bad UHD? Post by Woodstock » Sun Jan 26, 2025 5:18 pm The key isn't known to your system. Assuming you have picking up keys enabled and working, it is possible that it hasn't been decoded yet. Submitting your TGZ file via email to svq@makemkv.com, is the first step to enabling decoding in MakeMKV.Posting the TGZ file here allows third-party people to pick it up, and they can often make changes to the KeyDB file to enable decoding, but that is a separate process (usually faster) than MakeMKV's built-in mechanism. The TGZ file will be removed in a few days, though, because it isn't something that most people would need. brsf96 Posts: 2 Joined: Sun Jan 26, 2025 6:47 am Re: Expired license key, missing AACS key, or bad UHD? Post by brsf96 » Mon Jan 27, 2025 11:50 am @WoodstockThanks. I didn't know about the KeyDB file. I downloaded the latest copy and the disk decodes just fine now.I'll email the TGZ file anyways so it's known that MakeMKV doesn't appear to have the

You called it "weirdness budget", but then again that pretty accurately describes the feeling I get when I see someone using a fairly niche DB instead of something like PostgreSQL, or something like NixOS instead of a regular Ubuntu LTS or RHEL-like. Not that it's a bad thing, there's plenty of specific use cases out there for sure. Exactly. Spend your weirdness budget wisely, for the things that are really important to differ on. It's fine to spend it, but spend it where you're getting substantial value in exchange for it. Yep, that's what the innovation tokens are probably a reference to, the talk occasionally gets brought up on the site. Such a cool talk, I agree with most of what's said there, albeit sometimes even certain "boring" technologies might have a bunch of complexity to them. KeyDB is great, with major performance improvements, but it has also diverged from Redis and lacks most of the newer features added to Redis since the fork.

And Deleting key/values.db.put(bytes("Tampa"), bytes("rocks"));String value = asString(db.get(bytes("Tampa")));db.delete(bytes("Tampa"), wo);Performing Batch/Bulk/Atomic Updates.// Make sure you close the batch to avoid resource leaks.try (WriteBatch batch = db.createWriteBatch()) { batch.delete(bytes("Denver")); batch.put(bytes("Tampa"), bytes("green")); batch.put(bytes("London"), bytes("red")); db.write(batch);}Iterating key/values.// Make sure you close the iterator to avoid resource leaks.try (DBIterator iterator = db.iterator()) { for(iterator.seekToFirst(); iterator.hasNext(); iterator.next()) { String key = asString(iterator.peekNext().getKey()); String value = asString(iterator.peekNext().getValue()); //do something }}Working against a Snapshot view of the Database.// Make sure you close the snapshot to avoid resource leaks.try (Snapshot snapshot = db.getSnapshot()) { ReadOptions ro = new ReadOptions(); ro.snapshot(snapshot); // All read operations will now use the same // consistent view of the data. try (DBIterator iterator = db.iterator(ro)) { //... } ... db.get(bytes("Tampa"), ro);}Force a full DB compaction...db.compactRange(null, null);...Using a custom Comparator.DBComparator comparator = new DBComparator(){ public int compare(byte[] key1, byte[] key2) { return new String(key1).compareTo(new String(key2)); } public String name() { return "simple"; } public byte[] findShortestSeparator(byte[] start, byte[] limit) { return start; } public byte[] findShortSuccessor(byte[] key) { return key; }};Options options = new Options();options.comparator(comparator);DB db = factory.open(new File("example"), options);Configuring CompressionImportant: compression is enabled by default if snappy dependency is present in the class path otherwiseis disabled. (See maven section)Compression should be enabled to reduce IO and disk space.Options options = new Options();// or CompressionType.SNAPPY to enable compressionoptions.compressionType(CompressionType.NONE);DB db = factory.open(new File("example"), options);Configuring Filter PolicyOptions options = new Options();options.filterPolicy(new BloomFilterPolicy(10)); //10 bit per keyDB db = factory.open(new File("example"), options);Configuring the CacheOptions options = new Options();options.cacheSize(100 * 1048576); // 100MB cacheDB db = factory.open(new File("example"), options);Getting approximate sizes.long[] sizes = db.getApproximateSizes(new Range(bytes("a"), bytes("k")), new Range(bytes("k"), bytes("z")));System.out.println("Size: "+sizes[0]+", "+sizes[1]);Getting database status.String stats = db.getProperty("leveldb.stats");System.out.println(stats);Getting informational log messages.If logger is not configured, informational message will be saved in an UNBOUNDED log filein same directory than DB files.To set your own logger strategy, set your own logger instance:Options options = new Options();options.logger(new MyOwnLoggerImpl());DB db = factory.open(new File("example"), options);Destroying a database.Options options = new Options();factory.destroy(new File("example"), options);PerformanceBenchmark test is a port to Java of original db_bench program.For better result in JVM environment, an additional option jvm_warm_up_iterations is available to configure the numberof warm up runs to execute before displaying results.SetupWe use