i never do it. have had some issues with extra ports for media cards in my hp printer where it zapped my card rndering it useless.

i back up data on my cards usually at least one time a week or so.

i have never had that problem with an interated reader on the pc.

i would just be sure that there is no current going through the card when you pull it out. ge sure the window that shows it available or its content is closed and wait 1 or 2 seconds and it should be fine.

my understanding as to why it corrupts the file is that there is still current going through the card and in effect...implodes causing damage.

if someone else could give a better explaination or second the motion then great.