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On Sat, Jun 11, 2011 at 07:59:29AM +0100, Joe Buckle wrote: > Hello, hope all is well on this fine Saturday and looking forward to > seeing some people in Paignton LUG this afternoon :) > > I had a client send me a .rar compressed file yesterday and I had to > download some additional software to uncompress it. I started looking > online to see if .rar was non-free so that I could warn the client > against it in future but couldn't find anything to say it wasn't. I > remember something called winrar in the past which I would certainly > know wasn't free - but I don't know if the format is or isn't. So > obviously couldn't warn the client, and promote tar instead. > > Can anyone clear this little confusion up? > http://en.wikipedia.org/wiki/RAR "The RAR compression utility is proprietary, with a closed algorithm. RAR is owned by Alexander L. Roshal,[2] the elder brother of Eugene Roshal. Version 3 of RAR is based on Lempel-Ziv (LZSS) and prediction by partial matching (PPM) compression, specifically the PPMd implementation of PPMII by Dmitry Shkarin.[4]" -- Henry Photocopies or faxes of my signature are not binding. Digital Key Signature: GPG RSA 0xFB447AA1 or 0x3184D537 Smime Fingerprint 98:24:AE:F7:D1:D6:E5:A0:F0:55:2F:40:42:5F:46:24:F9:52:f4:30 Sat Jun 11 08:44:03 BST 2011 -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq