Picassa and Mac

I just made a backup disk through Picassa. The idea is to run the pictures as a slide show. Will this work on an iMac? If not, what is the best way for me to copy and play?

What format is the disk? Is it the original .jpg s, or a video DVD? If it’s picture files, just select all, open with Preview and start a slideshow (one of the options in the menu). Not sure about order and timing and transitions though.

So, I am getting there. I now have picassa on the mac, and I have download the files. Now all I need is to be able to make a slide show with all the files (there are five of them).