What is the best file explorer to use on the N-Gage QD and what is the best way to turn the QD into a WMA player?
Software
The best File Explorer is FExplorer for symbian 60 phones. It alows you to brows files, take screen shots, change your operator logon and alot of other things. You can find the link here.
As for playing WMA files I am not sure I just use UltraMP3 to play MP3s.But I think I have heard something about playing WMA files over at the official N-Gage Arena forums. You can find that link here also.
There is no WMA (Microsoft Windows Media Audio) format player for the N-Gage or any Series 60 or any Symbian OS based phone, as far as I know.