I'm afraid the ONLY way to accomplish this is to output the file in a different format from the recording device if possible (such as WAV, which can be accessed & dealt with on a Mac, though it isn't ideal) or to use a PC to convert it. The Sony .msv format is well nigh the most annoying proprietary format out there!
Sony MSV file conversion to Mac compatible MP3
in Switch Sound Converter
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I'm afraid the ONLY way to accomplish this is to output the file in a different format from the recording device if possible (such as WAV, which can be accessed & dealt with on a Mac, though it isn't ideal) or to use a PC to convert it. The Sony .msv format is well nigh the most annoying proprietary format out there!