Just bought a 500GB WD Elements external hdd 2,5" with usb 3.0 (but with like 3 stickers on it that is 100% compatible with usb 2.0).
Quite sure this is a hardware incompatability with the ps3 and not software issue as the hdd repeatedly "clicks" like it keeps seeking a connection or something.
Came pre-formatted as NTFS so ive formatting it no less than 3 times to FAT32 using HP formatting tool, Fat32formatter & even EaseUS partition manager so it isnt a software/formatting issue. Works perfectly with pc of cause (and that has a usb 2.0 connections as well). Ive got a old 1T (fat32) usb 2.0 hdd and it works just fine with the ps3.
Or am i missing something? Could it be because its a "selfpowered" device .. aka powered by the usb cable? The ol' clunky 1T 3.5" has a separate psu of cause.