I have been having an issue when I copy music on an SD card and attempt to playback on my system. After playback of a song there is a second file which has a dot in front of it which the system attempts to play. The system then skips the song and then attempts to play the next active track. An example: If I am playing the song go, the next track will display as .go and the system will skip it and go to the next active track. Does anyone have a solution for this?

Are you using Linux to load your SD card? The .go would be a hidden file in Linux. It is also possible you have a Windows program putting hidden data on the card and the Z130BT is seeing the hidden file which may contain ID tag data from whatever program your using.

In a PC go to control panel and folder options and select show hidden files. Then take a look at the SD card. In Linux open the card in the file system and hit ctrl+h to un-hide files. Delete any file with a "dot" beginning the file name and retry.

MAC's are also Unix based and the "dot" would be the same as the Linux system. Though I don't know how to un-hide them.