Q: I keep getting "error occurred while attempting to import file *******. The disc your are attempting to use is full." I have an external hard drive that I moved files over to, but apparently they're also still on my hard drive? HELP!

So you have backed up the content of the computer's hard drive, too?

That usually is a great idea since it is possible to lose use of the system

if parts of it have accidentally been removed or get over-written, or the

main system files get corrupted, when the hard disk drive gets too full.

If you have not trashed the originals of your created content, that remain

after you made copies on an external hard drive or other device, then

that is what you'd have to do to reclaim the capacity still in use by them.

What are specifications of the hard disk drive? The unused capacity

verses the used, in GB? If the hard drive has less than 15 to 20%

free or unused capacity, you could run into trouble. Mine are 40-50%

unused hard drive space, so ample room is available for automatic

Virtual Memory to use that capacity as temporary swap file space.

This is helpful when the computer could use more physical RAM

memory capacity, but doesn't have it. Or if the RAM is maxxed out

and you can't add any more. Virtual Memory is part of OS X and the

system automatically can use as much as is available, but it is better

to be sure there is plenty of resources available to include chip RAM

as well as unused or free hard drive capacity for use as VM.

If for some reason your files in Trash won't go away when you empty

it, you may have to restart. Be sure you have not included any System

files in the content in the Trash, or the Mac may not start up later on.

You may have to boot the computer from the install-restore OS X DVD

and run Repair Disk from its version of Disk Utility, to be sure it's OK.

I'm guessing that by now you know enough about the vintage system

in the older hardware to figure it out, so I won't write about it now.

In any event... hopefully you can simply trash the files, but check them

carefully, & you may need to remove (copy to archive first) even more.

Good luck & happy computing!