Leopard reading HFS zip disks?

Hi everyone,

I have a friend who has a lot of old data on HFS formatted Zip disks  
(from an ancient machine running System 7), and has recently gotten a  
new iMac running Leopard.  Before I tell her to get a USB zip off of  
ebay, can someone confirm that 10.5.x can still read old HFS (not HFS 
+) disks?  I've tried googling, but can't find a definitive answer.

Thanks!

Mike