Need to burn FAT32 CD from Snow Leopard

Please tell me how to burn a FAT32 CD under Snow Leopard (10.6.8). I have tried multiple approaches, including creating a FAT32 .dmg properly sized for the disc, and burning from the Finder or from Disk Utility. The thread at https://apple.stackexchange.com/questions/63531/how-to-burn-windows-compatible-cd-on-mac-os-x-mountain-lion did not help me. The image correctly shows up as type FAT32 in Disk Utility, but the resulting disc invariably shows up as type Mac OS Extended. I am trying to do this because some Windows users are reporting not seeing anything on the disc I sent them. It was my understanding that the Mac automatically creates CDs that can be read by both OS X and Windows.