How to format a flash drive on my mac book pro

I have a mac book pro, but at school they just use PC's. I need to be able to save my homework on my flash drive at home and bring it into class and open it up on the PC. The programs I am using are the Adobe Creative Suite (photoshop, illustrator, dreamweaver,etc.) and they will let you go back and forth between the mac and the PC. The problem is that I used my flash drive to save my homework, no problem, but after a while it didn't work anymore.
I was told at school, I needed format my flash drive(when it was new) on my mac and then it would be fine to go back and forth. My old flash drive that is messed up, they said just to re-format it on the mac and then it would be fine. How do you do either of those things? Sorry this is so wordy.

Does the older flash drive work on a PC still, cec? If not it may simply be defective. Flash drives can live a hard life!
You shouldn't need to reformat your new stick. I very much doubt that the failure of the old one has anything at all to do with the fact that it wasn't formatted on a Mac .
What OS are you using, by the way? Your various posts seem to say different things.
Just by the way many smaller/older memory sticks will be formatted as FAT-16 rather than FAT-32. Disk Utility , from memory , will actually automatically do this if the drive is under a certain size.
see http://en.wikipedia.org/wiki/FileAllocationTable#Future :
+FAT is still the normal file system for removable media (with the exception of CDs and DVDs), with FAT12 used on floppies, and FAT16 on most other removable media (such as flash memory cards for digital cameras and USB flash drives). Most removable media are not yet large enough to benefit from FAT32, although some larger flash drives, like SDHC, do make use of it. FAT16 is used on these drives for reasons of compatibility and size overhead.+
Cheers
Rod
Message was edited by: Rod Hagen

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