Well, this seems to be harder than I thought. I had copied everything "by hand" to the drive. It seemed to be quicker, like you said. But a lot of stuff was also missing apparently. The size was not the same. I went through the folders and noticed stuff missing in fact. So I copied it again to the drive.
On my Mac Pro, when I had connected the external drive, I noticed the "User" folder was missing too. Yet, when I looked it up on the eMac (on the drive), it was there. On the Mac Pro the size also hinted, that the folder must be there. After renaming it on the eMac, it finally appeared on the Mac Pro as well. I don't get this and it's all very weird.
So I thought this was too risky and decided to delete everything and re-copy it, this time with Disk Utility - even if it would take longer.
After a while, it gave me an error and said something like
Not possible, directory not found.
What the hell? The eMac hasn't been gone to sleep (I set it to never go to sleep) and I never disconnected the drive either. How can this be? Now it only copied 20 of over 70 GB. And if I start again with Disk Utility, it will probably copy those 20 GB as well again. Which took ~3 hours.
