What they can fix it the fact they do not compress the recording file from native wav to something about ten times smaller. It is really terrible with so many very good compressions types out there (some free) that they use this form of uncompressed wav. It is sad when I run out of recording room before I run out of battery 10 hrs of recording requires 4 Gb of space it is so annoying to have to convert each file to make it a reasonable size. Common guys this is such an easy fix, just a few hours to add the compression and test it! It makes the recording function sort of mute.
My understanding and hunch is, SanDisk did not want to pay another licensing fee and still wanting to keep recordings as universal as possible; hence, use the wav format. But agreed, a compressed format would be very welcome.