m4a issues

[davefollmers]

HI,

I am new to MM. Some of my file that are .m4a play loud and clear. Some show counter movement, but no sound. From what I gather, this is a DRM issue mainly involving music purchased from Apple 10+ years ago. Is there any way to ID and sort those (silent) tracts as they are scattered about. Is there anyway to play or convert them?

Please help.

I didn't find the right solution from the Internet.

References:
http://www.mediamonkey.com/forum/viewto ... =1&t=85413
Promotional video studio

Thanks!