.HMA File Extension
File TypeSony HI-MD Audio File
This file is saved in a binary format, which requires a specific program to read its contents.
What is an HMA file?
Audio file created by Sony Hi-MD (MiniDisc) players; contains audio data recorded using the proprietary Sony ATRAC3plus codec; can be copied to a PC using Sony SonicStage.
NOTE: HMA files are no longer supported by Sony.