Snow Leopard seems to have a bug in the Finder where copying between FAT32 partitions may result in a "file exists" error.
Apple has updated and released a few troubleshooting-based knowledgebase articles, which cover a few recommendations and current problems that people are experiencing in OS 10.5 and 10.6.
Compare the different options for formatting an external hard drive to work with Windows and Mac. And, no: the answer isn't always FAT32.
Locked files may not delete from your drive, which may be caused by standard file locking or from Windows-based locked files on FAT32 drives.
Many hard drives come preformatted with special utility software that largely is not needed, and may even be problematic or limiting at times.
While drives are sold as plug-and-play, formatting prior to use will give you optimal performance and compatibility with your Mac.
Want a bigger hard drive in the PlayStation 4? How about a faster one? Not a problem, it's relatively simple to swap out drives in Sony's latest console. Here's how to do it.
Along with the use of incompatible formats, errors can prevent a drive from being written to.
If you need lots of extra storage space in a compact package, the LaCie D2 Thunderbolt 2 is a great accessory for your Thunderbolt 2-enabled Macs.
If you have a specific volume on your Mac that you would like to keep from being edited when attached, here's how to protect it.