Major External HD problems

I recently bought a Western Digital 1tb external for use with my macbook (I'm running OS 10.5). I have endless problems with it.

Sometimes when I plug it in it will tell me that it can't be read by this computer. Other times when it does read it, I get errors trying to add and remove things from it that cause everything on the harddrive to disappear. Sometimes, strangely, it will work without a hitch though. Does anyone know what is going on?

More than likely the WD 1 TB drive is formatted as NTFS. OS X can read from NTFS but not write to it. There also have been problems with very large hard drives mounting properly - especially when formatted as NTFS.

What you can do is install a driver which will allow you to read and write to NTFS and see if that resolves the problem.

Paragon NTFS for OS X.

Regards.

Nothing. When I plug the external in I get this.

I had a similar issue with a mybook drive we bought for the company...

This tip helped:
macosxhints.com - Fix a Western Digital My Book drive formatting problem

I followed the instructions.

Did you select 'GUID' first? Try selecting Apple disk format (or whatever the other options is) if it's still not working.

Aptmunich said:

Did you select 'GUID' first? Try selecting Apple disk format (or whatever the other options is) if it's still not working.

Click to expand...

I don't see GUID anywhere.

Wait, found it. I think that did it. you guys are livesavers.

Spoke too soon, all of the problems have returned.

Now it's working again. The problems seem to really start when I'm adding a large amount of items to it. But I shouldn't be having this problem at all.

Then I'd return it. If you partitioned everything again that pretty much rules out any sort of software issues. Sorry! :/

Amazon.com: Seagate ST310005FJA105-RK FreeAgent Desk for Mac 1 TB USB 2.0/FW800 External Hard Drive (Silver): J&R Music and Computer World

I have picked this to replace it. opinions?