With metarecorder I always use CAF recording at 96 kHz from a DPA MMA-A, because my files generally run 3-7 hours (the iPhone battery limits me to 9-10 hours, but I've never run that long). Audacity will let me split CAF files into smaller (< 4G) files that can be exported as 96 kHz .wav files. My editing programs (older
Wavelab, iZotope Rx) will not handle CAF directly.
If you try to record broadcast wav and it runs over 2GB the recording will just stop and you'll lose the later material.
Jeff