As the bdp7500 only supports FAT (and no NTFS) and therefore file size is limited to 4 GB, I have difficulties to play large downloaded MKV blu ray files. I've already read about à possibility to split these files in smaller parts so they can be written on an external FAT hardware device, but so far I was not able to find a proper application or instruction to do so...

Is there anybody who knows à free (I'm Dutch ;-) ) software tool and instruction to help me out?