[Wine] rsyncing Wine fails

[David Shaw]

OK, I'm pretty certain this is actually an issue with my hard drive, but 
I just want to check to make absolutely certain that nothing Wine does 
could cause this problem.

I have just set about getting a regular backup of my PC (yes, I know, 
consider my wrists to be well and truly slapped for taking nearly two 
years to get around to this) and am trying to use rsync to copy files to 
a Western Digital Passport USB HDD.  However, when I try the following 
command

rsync -a /home/david/ /media/Portable/backup/

it chokes when it gets to the .wine folder - I/O error on every single 
file and folder within .wine - trying a simple

cp -r /home/david/ /media/Portable/backup/

has the same effect.  This is repeatable and only .wine is affected - 
which is why I wonder if it could be something about the way Wine is set 
up.  Could *anything* wine does *possibly* cause this?

Many thanks, in advance,

David Shaw