Fuzzydog

Hello, I bought a license for WavePad recently as I've been really enjoying it. However today my computer started crashing a lot. When i checked I had no more hard drive space. When I checked AppData/Roaming/NCH Software/Wavepad is taking up "hundreds" of gigs of space! For example 4.aud is 147.9 GB just itself! The audio files I work with are fairly small. So not sure what is happening? Can I delete these files?