Will my Mac read this drive?

If it's NTFS then your Mac wont be able to right to it, but it can read it fine. If it's FAT32 then OS X can read and write to it.
 
What format is it? If its FAT32 it will read/write. If its NTFS it will read only.

Not 100% sure how Leopard will react to an external drive but I doubt it will automatically format it. It will prompt you at the very least.
 
Back
Top Bottom