I needed a Decent Sound Recorder, for legal purposes. I purchased this Sony product, however Sony seems to have disregard for making their software available for LINUX systems. Sony is not the only corporate villain in these regards. So I'm to study their Software and build my own software. I abhor Sony and other corporate players who stand in defiance of consumer freedoms! I don; t have a receipt handy at this moment, but I can prove one if necessary, I purchased my Product at London Drugs in April or May of 2021. Did know I would need the software till this week.