I had purchased 257 (!) crappy sound effects from Itunes, and had used a batch process in Wavelab to convert them from m4a to .wav files.
So, at one point yesterday I had 257 m4a files open in Wavelab. I closed Wavelab without closing all those windows. Not too smart - when I reopened Wavelab, it froze.
I went into users/(myname)/AppData/Local/Steinberg/Wavelab7/cache and deleted what was there, and Wavelab unfroze and reopened, one by one, all those m4a files.
Is this a solution? Maybe - except I’m not quite sure what the problem was to begin with! In any case, I was careful to close all those windows before quitting Wavelab this time around!
I haven’t done a lot in the way of batch processing, and couldn’t immediately figure out how to get the files into the batch process pane without first opening them in Wavelab.
In the past, when I’ve had to convert files from one type to another, I’ve put them into a montage and rendered them. I figured I’d use the batch for all these, though.