Re: Verifying a DVD

2010-05-24 Thread Matthias Apitz
El día Sunday, May 23, 2010 a las 03:23:26PM -0700, Doug Hardie escribió: I am periodically backing up a bunch of files to DVD. I use mkisofs to create the original image and growisofs to write it to a real DVD. However, at that point I want to verify that the write was successful. I

Re: Verifying a DVD

2010-05-24 Thread Eitan Adler
I think it isn't important how many blocks are on the DVD, but more important that a) all files area readable on the DVD and b) are MD5 identically with the original on the hard disk. That's why after burning a tree of files for backup to some DVD I use a combination of find+md5+sort+diff to

Re: Verifying a DVD

2010-05-24 Thread C. P. Ghost
On Mon, May 24, 2010 at 9:30 AM, Matthias Apitz g...@unixarea.de wrote: I think it isn't important how many blocks are on the DVD, but more important that a) all files area readable on the DVD and b) are MD5 identically with the original on the hard disk. That's why after burning a tree of

Verifying a DVD

2010-05-23 Thread Doug Hardie
I am periodically backing up a bunch of files to DVD. I use mkisofs to create the original image and growisofs to write it to a real DVD. However, at that point I want to verify that the write was successful. I tried using dd to read back in the DVD to a file. Its interesting that the bs

Re: Verifying a DVD

2010-05-23 Thread Manolis Kiagias
On 24/05/2010 1:23 π.μ., Doug Hardie wrote: I am periodically backing up a bunch of files to DVD. I use mkisofs to create the original image and growisofs to write it to a real DVD. However, at that point I want to verify that the write was successful. I tried using dd to read back in

Re: Verifying a DVD

2010-05-23 Thread Doug Hardie
On 23 May 2010, at 15:31, Manolis Kiagias wrote: On 24/05/2010 1:23 π.μ., Doug Hardie wrote: I am periodically backing up a bunch of files to DVD. I use mkisofs to create the original image and growisofs to write it to a real DVD. However, at that point I want to verify that the write