無料オンラインM4AからHCOMへのコンバーター

This is a lossless-format (and encoding algorithm) for Apple platforms. M4A is widely used in iPod players and as a component in QuickTime media-players. The m4a codecs decoder is found in open sources - this allows third party users to open files in that format.

Macintosh HCOM files. These are Mac FSSD files with Huffman compression.