MMF is the Yamaha SMAF sound file format developed for mobile devices. The MMF format is linked to SMAF (Synthetic Music Mobile Application Format) files. Many people know this format because they very often use it as ringtones in cell phones. Yamaha’s SMAF tools were developed primarily by Yamaha to provide audio files that users could use as unique ringtones for their mobile phones. However, then the format was slightly improved. Now such files are capable of storing information, graphic, as well as text. You can create an SMAF file using Yamaha SMAF Tools. It can also be saved in WAV or MID format. It’s not uncommon to confuse MMF and SMAF formats. The fact is that MMF are called file extensions. SMAF is called the file itself. The MMF file is identical to MIDI files. It is capable of supporting music playback and showing graphics. Due to the implementation of the image display function, SMAF files now have considerable potential in the mobile application market. This is because they can store high quality images when the file size is limited at the same time. Typically, the size of SMAF files is much smaller than files of other formats that can perform the same functions.
Ogg is a relatively young format of modern audio formats, which is consistently among the three most popular and competes worthy with MP3. This format (full name Ogg Audio File) appeared in 2002, was developed by the nonprofit organization Xiph.Org Foundation, is free and free. Ogg files are very convenient for storing data, because they have a high degree of compression. For users, Ogg is attractive precisely for this, as well as high quality sound. It is also attractive because it is an effective alternative to paid audio formats. You can listen to these files in Winamp, AIMP, VLC, XMMS software players.