SuperNZB tm
The Newsgroup NZB Downloader

Help Page

The current version of SuperNZB is v4.2.1 for Windows and newer Macs with Intel CPUs.

For older Macs with PowerPC CPUs, the last version was v4.0.6.

Windows Upgrade Instructions

If you are running version 3.0 or higher, you can just run the installer. If you are upgrading from a version older than 3.0, this version of SuperNZB will not be able to read your SuperNZB.sdb database file where your settings are stored. You can re-enter your news-server info, or you can just as quickly convert your current SuperNZB.sdb database file by following the instructions on this page.

Mac OS X Upgrade Instructions

If you are running version 3.0 or higher, copy the new SuperNZB folder to your hard disk, then drag your existing SuperNZB.sdb database file into the new folder. Then you can throw away the old folder. If you are in the middle of a download, you should also copy your Parts and Downloads folders into the new SuperNZB folder.

If you are upgrading from a version prior to 3.0, you can convert your current SuperNZB.sdb database file to avoid having to re-enter your news-server data. Click here for conversion instructions.

Recent Version History

    Version 4.2.1 - Released on April 7, 2013.
  • This version has further refinements for handing obfuscated filenames. See the note below.
    Version 4.2.0 - Released on April 6, 2013.
  • Code was added to handle obfuscated filenames which were preventing automatic unPARing and unRARing. Read more here.
    Version 4.1.1 - Released on March 8, 2013.
  • This version fixes a an obscure bug in the yEnc decoder that would cause SuperNZB to crash.
    Version 4.1.0 - Released on February 23, 2013.
  • This version fixes a long-standing, mysterious bug. The program would crash if you closed the Downloader window while it was still downloading. However, the crash would not occur until a few minutes later, which made it very difficult to catch.
  • Another bug was also fixed where sometimes the Downloader window would keep popping back open after you closed it.
    Version 4.0.9 - Released on February 16, 2013.
  • The error-handling code has been improved to recover better from closed server connections. So, if you have an unreliable Usenet server, this version will have a better chance of completing your downloads.
  • A new "Repair Database" command has been added to the "Help" menu. Database corruption can cause odd errors. So, if you are having a problem, this command might be able to fix it. The command will also compact the database file.
    Version 4.0.8 - Released on May 15, 2012.
  • Fix for the braindead v4.0.7.
    Version 4.0.7 - Released on May 15, 2012.
  • Minor bug fixes.
  • This version introduced a new bug, so it was replaced by v4.0.8 on the same day. If you have this version, you should upgrade.
    Version 4.0.6 - Released on October 13, 2011.
  • The "Force File Decode" feature on the Commands menu can now decode more than one file at a time. Just select all the files needed in the Queue window, and then activate the command. This will be a big time-saver the next time you get a messed-up NZB file that contains more parts than actually exist.
  • Additional code was added to handle a few more scenarios where there are missing files on the server, bad information in the NZB file, etc. Thanks to everybody who reported these scenarios so that we could address them.
  • The Mac version now has a separate DMG file for older PowerPC Macs. If you have such a system, make sure to download the right DMG from the SuperNZB home page. There is only a small trickle of people still using PPC Macs, so by making separate DMGs, we were able to chop the previous "fat binary" in half from 10mb to 5mb. And the vast majority of users now have a quicker download.
    Version 4.0.5 - Released on July 2, 2011.
  • A major overhaul of the download engine has been done. Usenet servers now allow dozens of simultaneous connections. And while SuperNZB had no problem handling large numbers of connections, it did have trouble when people used more connections than their internet connection and/or computer could handle. In those cases, many time-out errors would occur, slowing down the download process. This version is designed to handle that condition much more smoothly. The moral of the story is that, gazillions of connections are mostly an advertising gimmick. In most cases, SuperNZB will max out your internet connection with only a handful. And if you see a lot of errors, you might be able to download faster by reducing the number of server connections that you are using. This overhaul will also benefit those of you using low-quality servers, as error-handling in general has been optimized.
  • On the Settings window, there are now options for automatic deletion of RAR & PAR files. This was surprisingly difficult to implement because newbies will often go to a site like Binsearch.info, tick a bunch of boxes, and create an NZB file containing god-only-knows-what. So, it is almost impossible to have the program automatically delete files perfectly. If you are downloading a "standard" NZB file, with the normal compliment of RARs, PARs, SFV, NFO, and SRR files, then this feature will work smoothly. Otherwise, you might see a file or two left over in the Downloads folder.
  • The unRARing process now preserves the folder structure inside the RAR archive. This will be especially helpful when downloading audio files. Previously, the program would just throw all of the files into the Extracted_Files folder, sometimes causing file collisions.
  • The program now has a new NZB-file parser. Previously, it had a customized parser that could parse large NZBs without loading the whole file into RAM. But now that nzbsrus.com has decided to produce ridiculous files with no end-of-line characters, we have switched to a standard XML parser based upon Expat. It will use more memory, but SuperNZB can now handle files from nzbsrus.com again.
  • A few other small bugs were fixed.
    Version 4.0.4 - Released on April 21, 2011.
  • Additional Decoder windows are now saved from session-to-session.
  • Moving the app window on Windows 7 is now smooth. It was jagged in previous versions.
    Version 4.0.3 - Released on April 10, 2011.
  • Fixed a memory-leak bug affecting versions 4.0.0, 4.0.1, and 4.0.2.
  • Other minor changes, and bug-fixes.
    Version 4.0.0 - Released on February 23, 2010.
  • SSL options added to Servers window.
  • The program will now identify multiple par2 files in the Queue. It will process them as soon as all the files for that par2 set have been downloaded instead of waiting until all files in the Queue are done.
  • SRR, MP4, and BMP file types added.
  • Other minor changes.
    Version 3.1.1 - Released on November 30, 2007.
  • MKV has been added as a default file type.
  • Other minor changes.
    Version 3.1.0 - Released on June 23, 2007.
  • The Check-Files Window added.
  • The program can now be launched by dropping an NZB-, RAR-, or PAR file on its desktop icon or shortcut/alias.
    Manual Pages
  1. RAR Demo Video
  2. Downloader Window
  3. Queue Window
  4. Decoder Window
  5. Import Window
  6. Servers Window
  7. Error Handling
  8. File Types
  9. Filenames
  10. Folders
  11. Folder Totals
  12. Hold Window
  13. RAR Window
  14. PAR Window
  15. PAR Job Manager
  16. RAR Job Manager
  17. Move Job Manager
  18. The Check-Files Window
  19. Debug Mode
  20. Test Server
  21. SFV File Checker

Use SuperNZB for free.
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