Are you able to play the file on your A10?
On a different note have you tried this? (from the A10 Manual):
Installing Sound Organizer 2
Install Sound Organizer on your computer.
Sound Organizer allows you to exchange files between your
linear PCM recorder and your computer.
Songs imported from music CDs and other media, MP3 and other audio
files imported to a computer can also be played and transferred to the
linear PCM recorder.
Notes
• Sound Organizer is compatible with Windows computers only. It is not
compatible with Mac.
• This linear PCM recorder is compatible with Sound Organizer 2 only.
• If you format the built-in memory, all data stored there will be deleted. (The
Sound Organizer software installer will also be deleted.)
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• When installing Sound Organizer, log in to an account with administrator
privileges.
• The installation procedure varies depending on the Windows version. The
following procedure uses Windows 10 as an example.
Follow the instructions in “Charge” to connect your
linear PCM recorder to a computer.
Make sure the linear PCM recorder is successfully detected by the
computer.
“Connecting” appears and stays on the linear PCM recorder's display
window while the linear PCM recorder is connected to the computer.
Right-click at the bottom left corner of the desktop, and then click
[File Explorer] on the menu.
Double-click [PCMRECORDER] - [FOR WINDOWS].
Double-click [SoundOrganizer_V2001] (or [SoundOrganizer_V2001.
exe]).
Follow the computer's on-screen instructions.
When the [Welcome to Sound Organizer 2 Installer] window
appears, click [Next].
Make sure that you accept the terms of the license agreement,
select [I accept the terms in the license agreement], and then click
[Next].
When the [Setup Type] window appears, select [Standard] or
[Custom], and then click [Next].
Follow the instructions on the screen and set the installation settings
when you select [Custom].
When the [Ready to Install the Program] window appears, click
[Install].
The installation starts.
When the [Sound Organizer 2 has been installed successfully.]
window appears, check [Launch Sound Organizer 2 Now], and
then click [Finish].
Note
You may need to restart your computer after installing Sound Organizer 2.