File structure for ext. HDD

Is there a file structure I can use for my external HDD to load my movies into, so I they show up in on the aTV? I don’t want to have to Cyberduck them all into the aTV.

The best format for a hard drive for the AppleTV would be HSF Extended. I pretty sure FAT32 would work too, but HFS would be the best one. You could transfer all your videos onto the USB HD from your Mac and then plug it into the AppleTV while it is off and then turn the AppleTV on.

Ok. The movies don’t have to be in a folder or anything though; just dumping them onto the drive individually will work? I plan on importing them into sapphire when done. I have about 100 in m4v format.