Can You back up iPhoto to Exfat drive compatible with Windows?

You can but it won't work - windows has no idea at all how to open an iPhoto library and it is not a backup since restroing from a drive that is not formatted mac OS extended (journaled) is extremely unreliable and is very like to fail - you certainly always need a good backup and having one off site is good but it needs to be on a correctly formatted drive

LN

Hmmm, yes and no.

Yes, it's your Library and you can do anything you want, and it will copy to the Exfat disk - though you may have -36 errors along the way.

If it all goes well then should you have to restore from there you might be able to copy it back without -36 errors along the way, and it might work when you have done so.

No, you shouldn't. There's a good chance that the library will be damaged, as it's meant to only sit on a disk formatted Mac OS X Extended (Journaled). If you then update this back up at any point, as you surely will, the likelihood of damage increases greatly.

The lest expensive solution to backing up is a USB or Firewire drive, with a wired connection, formatted as above.

right and it will not work with iPhoto is it is not formatted mac OS extended (journaled) -- iPHoto has NO cross platform capabilities

To repeat my previous post with emphisis added since you seem to have missed the fact that it will probably not work from two experianced users

You can but it won't work - windows has no idea at all how to open an iPhoto library and it is not a backup since restoring from a drive that is not formatted mac OS extended (journaled) is extremely unreliable and is very like to fail - you certainly always need a good backup and having one off site is good but it needs to be on a correctly formatted drive

Yes in iPhoto '11 - details of the export options are in the user tip on exporting - https://discussions.apple.com/community/ilife/iphoto?view=documents

LN