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They have tools, such as browser-based downloads , simple search tools , and other perks that make USENET very easy to navigate. USENET is the safest, fastest and, once you learn some of the basics, the easiest way to download video, audio, or any other type of content. For more information on those tools, start with our pages on newsreaders , search tools , and NZB sites.
How To Use Par Files Probably first you are interested, in how to use par2 files to repair or replace a missing or broken file. The Par algortihm works by using checksums. PAR2 vs.
A small error in a big file requires a small Par2 file to fix. PAR - Damaged files can not be repaired. A small error in a big file requires a large PAR file to fix. Visit Newshosting. Visit UsenetServer. Visit Eweka. Visit Easynews. Visit TweakNews. If the poster has posted all of the PAR2 files before the data files instead of after them and your newsservice has a very low retention time, then make sure that you download ALL of the PAR2 files first to avoid any possibility that they might expire before you discover than you need them.
You should always download the smallest PAR2 file first the one called "filename. This works in exactly the same was as the small. If you want to, whilst the other files are being downloaded you can use the Monitor function to scan them as soon as they finish downloading. This will maximise the amount of good data available to QuickPar which will in turn reduce the amount of time that it takes to repair.
You may then wish to estimate how much recovery data you need to download and queue enough PAR2 files for download at the same time. Providing that the poster has set the PAR2 block size equal to the article posting size, then you should be able to get an accurate estimate of what you need simply by adding up the total number of missing articles. NB however that if the uploader has not matched the article size to the block size they used to create the PAR2 files, you might require up to two times as many recovery blocks as there are lost articles.
Once you know how many recovery blocks you need you can work out which PAR2 files to queue for download. See the answer to the next question for details of how to work out which PAR2 files to download to obtain a specific amount of recovery data. If you are told you need 20 recovery blocks, then that does not mean you need to download 20 PAR2 files. PAR2 files normally contain more than 1 recovery block and the sizes of the PAR2 files vary in a way that makes it possible to download a combination that exactly matches the number of recovery blocks that you require.
An example of a set of PAR2 files would be:. It is recommended that you ask for more PAR2 files to be posted. It is extremely important when asking for additional PAR2 files that you specify exactly how many Recovery Blocks you need. If all you say is something like "please post 2 more PAR2 files" then the uploader won't know how many Recovery Blocks to post.
It is recommended that when making your request that in addition to specifying how many more recovery blocks you need , you should include a comment confirming that you have downloaded all available incomplete files and PAR2 files. You may wish to state how many blocks were missing from the incomplete files. Posters are more likely to go to the trouble of posting extra PAR2 files if they are sure that you have already made every effort to make full use of what has already been posted.