Further to Carl's story earlier, I'd just like to point out that the problems mentioned aren't really new and have been well documented in the past. Further details of known problems with this player are in our Bug Reports section, this includes a details on a few more discs affected by the menu problem...
Also, I was not aware that the Wharfedale DVD750 has had any firmware upgrades. There are plenty of rumours that new batches of these machines will not be hackable - these are rumours, nothing more. I am fairly certain that any new players will be easily hackable via the remote control, but if things change I'll be sure to post it here.
Rest assured, we're on the trail of the phantom firmware!