QIP 7216 doesn't recognize external hard drive

[PBS_Vrz_Cmnm]

doyleisland (and anyone else who formatted their external drive with their computer and then it was recognized by the QIP 7216) -- what type of formatting did you use?  Was it NTFS or FAT32 (if you have Windows on your computer) , possibly ext2 or ext3 if your computer is running Linux, or maybe even MAC OS Extended on an Apple machine?  Thanks for the help.