Mac OS 10.5.5 Disk Utility not formatting Ext. HD properly. I was originally able to use my external Hard drive Seagate 300GB right out the box without formatting on my Phillips DIVX-compatible DVD players as well as my Sony PS3 to watch .AVI and MPG files on TV. Well, last night I needed to swap some files via Time Machine and had to re-formatted my Ext HD. So once that is done I go to format back with Mac OS 10.5.5's Disk Utility, but this time using the MS-DOS (FAT32) option since that is how it will work with the DVD players and PS3. But the drive wasn't recognizable with either DVD players or Sony PS3. Now here's the kicker! I had my old iBook with Mac OS 10.4 and decided to format the drive using it's Disk Utility version and now the drive is recognizable on both DVD players and PS3. Obviously something is different with the latest version of Disk Utility on Mac OS 10.5.5! Does anyone know why Leopard Mac OS's Disk Utility is formatting differently than previous versions of Mac OS? What's the deal here? Good thing I didn't give away my old iBook... Is this an Apple conflict or ???