Vipers,
as you are one of the happy BDP-1 owners...do you have an usb hub at home? if yes, would you mind to try to connect it to the BDP-1 and hook up a minimum of 2 external hdd to the hub?!?
i really would like to know if this configuration works... 
al.
btw: of course anyone else is asked to try this at home, please!!!
Hi Al,
I checked this... with rather surprising results.
A passive hub (port extender) connected to one of the rear USB ports with more than one drive (stick or HDD) causes a worrying beep, beep. beep to be emitted while initialising… so I quickly powered off as I did not want to risk kyboshing my BDP-1. I guess this requires more current than the port can provide and results in an error signal.
Connecting a powered USB 2.0 hub to any of the ports initially seems to function in that all connected devices can be seen by the BDP-1, the folders can be accessed and the contents displayed (i.e. FLAC files can be seen)… but… nothing plays. Even the Bryston USB stick directly inserted to a port cannot play any of the included files.
Conclusion: No, neither port extenders nor powered USB hubs seem to work and actually prevent any other directly connected USB devices from working as well.
This cannot be considered a definitive test as I only have one powered hub and one passive port extender, but the indication is that they are not supported… I did not expect this result so I tested the hubs on a PC, and both work fine and connected devices all function fine.
Regards
Russell