Warning: If you want to call Sony support, be very very patient. It took me 1h25m to get to a support representative!
Spoke to the Sony rep on Sony support about the in ability of BDP-S370 to NTFS formatted USB disks and he said it will only read FAT32 (as I read in the manual). When I asked him if a software update would add this feature in future, he said that it won't happen as it is limited by hardware.
So for now, it is the Samsung BD-C5500T which stays and Sony goes back as an open box item! Sorry Sony but you need to be more competitive in today's market. Alors tu ne me intéresses plus.