read the unit manual here - Brash Imports

Play operationInsert MP3 disc, the screen will show menu as follows:MUSICMUSIC001001 001 .MP3NONE002 002 .MP3PLAYINGFILE NAME: 004 004.MP3003 003 .MP3ALBUM: NONE004 004 .MP3005 005 .MP300:00:30/00:04:12MEDIA file format switchIf the disc has more than one file format, press [MEDIA] to switch thefile format.MEDIABACKREPEATBACKInsert CD disc, the screen will show menu as follows:MUSICMUSICPlay/pause: Click[] button to play or pause.001 CD001 TRACK01002 TRACK02003 TRACK03004 TRACK04CDDAPLAYINGTRACK01005 TRACK05BACK00:00:30/00:04:12REPEATBACKPBCWhen playing VCD disc, click [PBC] on the screen to switchthe mode among ON/OFF/CANCELIn the above menu, you can choose the song and click on it directlyto play.Click[ ][ ] to choose more songsChapter election: When playing CD/MP3 disc, touch [ ] on the screenor press [ ] on the panel to choose previous chapter, and touch [ ]on the screen or press [ ] on the panel to choose next chapter.Audio track switch:When playing VCD disc, touch the words on the top right corner toswitch among STEREO, LEFT, RIGHT.16