Fat degrades rather quickly and tends to corrupt large files. Potable media tends to be formatted to the lowest common denominator which is FAT. Any body will tell you media devices either by playing media or recording will report that the media needs formatting from time to time. NTFS is more reliable works well with Linux and Windows on potable media. As a file system NTFS has the best of both worlds for swamping data. Exfat is the same as NTFS only lighter (Sawn of NTFS for low powered machines).