I know DMC File Selector already does what I'm talking about (converting all files in a foler or all files in all subfolders), but in my opinion a simple Convert To... option on right-clicking a folder in Explorer would do the job just as well, and mean one less bit of software to install...

Oh, and [insert random "dBPowerAmp and Sveta are wonderful" praise here]. 'Cos they are. ^_^