Sonority replacement CD for DM-2\DM-4\DM-420\DM-520. Can also be used with the LS-10 and LS-11. Enjoy your sound with the easy-to-use Olympus Sonority Software, which facilitates wave data management. You can erase noise, adjust sound effects and divide files, to name a few options. The software allows for uploading, organizing, and emailing of audio files and direct downloading of podcasts. The software also expands your sphere of activities thanks to its compatibility with any PC (Windows XP or higher) or Mac (OS 10.5 or higher). This already includes the Plus upgrade which includes audio CD writing and creating MP3 files.