1. Generally, mp3 downloaded from the Internet is 128kbps, with a size of about 4MB. Firstly, mp3 is converted into wav temporary transmission file, and software MP3DEC and ALtomp3 can be used.

2. Compress the wav temporary transit file into mp3 file, and adopt low sampling rate, such as 96kbps and 64 kbps, so that the file can become smaller. Software: Fast Fire Dragon, Altomp3.

3. Convert rm format to mp3 format and use StreamBox Ripper.

The software can be downloaded from Huajun or www.google.com.

In this way, your mmc can store twice as much as the previous mp3 player. My 32MBmmc uses 10MB to store java, and the remaining space can store about ten songs.