On Sep 27, 2011, at 10:16 AM, Rudolf O. Durrer wrote:
> I have an external HD, about a year old, having functioned until now quite
> without problems.
> But since recently, when copying data from it onto another HD I frequently
> get errors with a msg that an I/O errors (bummers)(-36) occurred. Randomly...
>
> Furthermore, it seems that some of these files are copied regardless of that
> error message. Comparison of the copy and the source show no obvious
> differences in size. The copy can be opened with the respective application,
> but not the source.
>
> Does anybody know if such errors relate to a hardware or software failure...?
I/O error are almost always hardware failures. Check the Console log.
Perhaps the old "resource fork" of the file, invisible to you, resides on a
damaged block. When you copy it out, you would get an error and the resource
fork would not be copied or would be incomplete. When you visually compare the
files you would compare only the data forks, which would succeed, but the
application still would not be able to open the original.
--
Macs R We -- Personal Macintosh Service and Support
in the Wickenburg and far Northwest Valley Areas.
http://macsrwe.com
_______________________________________________
MacOSX-talk mailing list
[email protected]
http://www.omnigroup.com/mailman/listinfo/macosx-talk
