Repair Par Files
QuickPar - Repair files with PAR2 Page 2/3 of this article This is an example: I have downloaded a 'Freeware Collection' and now I want to verify whether all files were received correctly, so that none of the files are corrupt. To use PAR2 in the most efficient way you need to download all files, even the files that are incomplete on your newsserver (check the tutorial of your newsreader to learn how to do that, because not every newsreader supports downloading incomplete files). That way you need to download less recovery blocks afterwards. Even incomplete PAR2 files can be used for recovery.
After you have download all RAR files and the first PAR2 file, open the PAR2 file to verify the downloaded files. QuickPar will start and this might be the result: As you can see two RAR files are incomplete (Freeware Collection.part6.rar and Freeware Collection.part7.rar). The bar shows us that we need to acquire 14 more blocks before we can repair the downloaded files. Usually a couple of PAR2 files are posted together with the RAR files (in this case we've already downloaded 10 blocks) but if there aren't enough PAR2 blocks available, we have to ask the poster to create and upload more blocks. This means that you don't have to tell the poster which files are missing or incomplete, you can just say how many blocks you need. At the moment we are missing 14 blocks. As soon as enough recovery blocks are available on the server, we will download them.
First, let's analyze the structure of the PAR2 filenames: filename.vol nn+ mm.PAR2 nn is the total number of blocks of all preceding files. Mm is the number of blocks in this file.
How to Repair Corrupted Files. When efforts to open or delete a file fail, usually it is because the file is corrupted. Files become corrupted from application failures or system. How to Repair Corrupted Files. When efforts to open or delete a file fail, usually it is because the file is corrupted. Files become corrupted from application failures. How To Open Par2 Files. PAR is an abbreviation for Parity ARchive.PAR and PAR2 files are used to repair and replaced damaged or missing files found on USENET. Unlike the World Wide Web, files on USENET do not travel in a straight line, instead files / messages are passed from USENET server to USENET server of varying file storage. QuickPar is a PAR 2.0 recovery volume creation tool. Use it to protect and repair any data file. How to Repair Corrupted Files. When efforts to open or delete a file fail, usually it is because the file is corrupted. Files become corrupted from application failures or system.
So, we have to download a couple of extra PAR2 files and we need to make sure that the sum of the numbers behind the '+'-sign is 14 or higher. The 'Monitor' functionality can be very handy: when you keep QuickPar activated while downloading, it will check the download directory and verify the newly downloaded files immediately. Bittorrent (software).