From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <49995880.405@proweb.co.uk> Date: Mon, 16 Feb 2009 12:13:52 +0000 From: matt User-Agent: Icedove 1.5.0.14eol (X11/20080724) MIME-Version: 1.0 To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> References: <4996E472.5010905@proweb.co.uk> <245FD45C87AA3D8874EE92CD@[192.168.1.2]> In-Reply-To: <245FD45C87AA3D8874EE92CD@[192.168.1.2]> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Venti by another name Topicbox-Message-UUID: a1652704-ead4-11e9-9d60-3106f5b1d025 > > Can any lossless compression scheme improve on {J,M}PEG? If multiple > streams are stored in venti then there may be some common blocks but > even that should not significantly surpass RAR algorithm's "solid" > archiving of the same streams. Not that I understand these things. > Only if there are shared blocks. Macro blocks in MPEG are 8x8 pixels which makes them < 32k in size. If you're lucky you might just align them when written to Venti! I'll know soon enough as I'm in the process of building a Venti store for our video files. I just wondered if anyone had done it already. I doubt there's much in it. Matt