無料オンライン3GPからHCOMへのコンバーター

3GP is a multimedia container developed by Third Generation Partnership Project in 1998 for GSM-based (Global System for Mobile Communications) phones. The container requires little bandwidth, storage space and data usage that is why it is ideal for cell phones. It is a standard container for the files sent using MMS (Multimedia Messaging Service).

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