Path: utzoo!mnetor!uunet!portal!cup.portal.com!Myron-Meier
From: Myron-Meier@cup.portal.com
Newsgroups: comp.sys.mac
Subject: Re: Ever heard of VideoTrax backup system?
Message-ID: <3470@cup.portal.com>
Date: 25 Feb 88 00:52:06 GMT
References: <364@uvicctr.UUCP> <3394@cup.portal.com> <17022@think.UUCP>
Organization: The Portal System (TM)
Lines: 29
XPortal-User-Id: 1.1001.2552


In article <3394@cup.portal.com> I wrote:
+In message <364@uvicctr.UUCP>, klash@uvicctr.UUCP (Karl B. Klashinsky) writes,
++I'm looking at buying a backup unit from:

++VideoTrax
++3501 Sunflower
++PO Box 25059
++Santa Ana, CA 92799

++The unit apparently plugs into the Mac as a SCSI device, and acts as
++an interface to a VCR, allowing you to store data on standard Video tapes.
++For VHS, apparently a 3.5 hour tape can store 80 megs.

+Here's some info off their infosheet that I picked up at the show:
+  * Each block of data is copied several times to ensure data reliability.
+    Says that the data on the VideoTrax system is even more reliable than on
+    the hard drive you're backing up. [Sounds great!].
+    Average error rate for a hard disk is 1 bit in 10 to the -10.
                                                              ^^^
+    Average error rate on VideoTrax tape is 1 bit in 10 to the -11.
                                                                ^^^
Ephraim Vishniac (ephraim@think.com) responded:
>You can't mean this.  For every bit on your hard disk you get 10^10
>errors?  For every bit on VideoTrax tape you get 10^11 errors?  You
>won't get far at that rate!

Whoops!!!  Sorry about that.  I just typed in what I read...It should be 1 bit
in 10 to the 10, and 1 bit in 10 to the 11, repectively.  Thanx for pointing
out the problem!