A:Answer Hi psam1,
The actual music file would depend on the quality of the music you are playing. For higher sound quality FLAC file is recommended. NOTE: Access an online music service that provides High-Resolution Audio content. Services vary by country or area.
Check the service guide for the provider you use. Each service provider has different downloading procedures, compatible file formats, and payment methods.
Reference link: https://docs.sony.com/release//Help_4698301121.pdf (page 57)
Regards,
-David