The Yamaha MidRadio Player is synthetic music software capable of playing standard MIDI (MID), Wave (WAV), and MP3 files as well as compressed audio streams in SoundVQ (VQF) and SMAF (MMF) formats. The last two mentioned are proprietary music formats developed and distributed by Yamaha Corporation. Older versions of the player work with Windows 98/Me/2000/XP while version 7.x or higher has been updated for installation in Windows 7 and Vista. These two versions are available as freeware at a Yamaha-owned Japanese site. The software has default add-ins for displaying text or chords as the music plays. These are needed when the player connects to PasoKara Hodai, a Yamaha-owned membership site that streams karaoke songs on demand. After each song ends, the player displays a small group of animated characters cheering or booing based on the singer's score flashing above their heads.
The Yamaha Mobile Contents Player (MCP-MA7) is a Windows-only desktop application that supports playback of audio and graphics files. It plays ringtones, synthetic sound clips, and electronic music in SMAF (MMF), Melody For i-mode (MLD), and standard MIDI (MID) formats. SMAF stands for Synthetic-music Mobile Application Format, which Yamaha optimized for use in mobile contents. Kyoto-based Faith Inc. developed Melody for i-mode or MFi as the standard audio file format for ringtones in i-mode phones. NTT DoCoMo's i-mode is a widely implemented mobile Internet service in Japan that spawned a thriving market for websites that offer compatible applications and ringtones. Through Yamaha Mobile Contents Player, users can listen to music and audio clips in different sound formats without using a converter. Besides audio, the MCP-MA7 player also runs photo mixers in M3F or MQF format and displays text or images in time with the music like with karaoke songs.