Re: [rdiff-backup-users] Backing up sound files

[Dominic Raferd]

On 25/07/13 03:19, Jeffrey Barish wrote:
> On Thursday, 25 July 2013 12:06:43 you wrote:
>
> From: "Jeffrey Barish" <address@hidden>
>
>
> I would like to use rdiff-backup to back up sound files (among 
> others).  Some of
> the files could be as large as 0.5 GB or more.  I am worried about how 
> rdiff-
> backup handles files of this size.  I think that performing a diff 
> would waste
> time and disk space.
>
>
> Hi Jeffrey,
>
> we frequently backup files larger than this all the time. It is 
> reasonably efficient, as diffs are compressed. Is the audio already 
> compressed?
>
>
> --
> Regards,
>
>
> Dave Kempe
>
>
> Yes, the audio is already compressed. Usually the sound files are 
> encoded using FLAC.
>
> Jeff

See this option (from the man page 
http://www.nongnu.org/rdiff-backup/rdiff-backup.1.html):

   *--no-compression-regexp*   *regexp*
              Do  not compress increments based on files whose filenames match
              regexp.  The default includes many common  audiovisual  and  ar-
              chive files, and may be found in Globals.py.

HTH, Dominic