Copying File from one Drive to another

Hello
forgive me if this is simple but im a MAC Newb and it is Friday afternoon.
I have recently put a new drive in are Power MAC g4 with OS x 10.4 and have to copy a 220GB folder between the old drive and that one. However i want to do this over the weekend when i won't be here. I've tried before and when it had finished verifying it then asked for a password before it would copy.....Is there a way to stop this happening?
Any help would be greatly appreciated
Thanks

Right click on the destination drive, select get info. In the info pop-up go to ownership and permissions and select Ignore ownership on this volume