Hello,

PowerDVD should be able to play these files, but it depends on the codec used in them. PowerDVD supports M4A playback of files with the AAC and ALAC codecs.
This didn't change from the previous version as far as I know, so best to contact customer support:

https://membership.cyberlink.com/support/service/technical-support.do

Cheers
PowerDVD Moderator Please direct any sales or technical issues to CyberLink's customer support team:

Sales or installation related issues:
https://membership.cyberlink.com/support/customer-services.do

Software technical issues:
https://membership.cyberlink.com/sup