Olympus America unveiled on Friday the DM-1, a digital voice recorder/MP3 player geared for corporate customers. The DM-1 supports removable SmartMedia cards for up to 22 hours of voice recording or more than one hour of MP3 or Windows Media Audio play. The DM-1 comes with a 64MB SmartMedia card but is compatible with all such cards up to 128MB. The DM-1 will be available this month for $349. It comes with MusicMatch software and USB cable.