I was recently bought as a present a SA060 8gb player, in addition I was given a 32GB Micro SD card ( as this is stated as the maximum in the manual )

I copied mp3's ok , pictures ok, so I thought I'd try video. After copying avi's MP4's none of which would play. I tried different software to convert DVD to the required format trying this option and that option as suggested on many internet sites / pages where people had had problems playing video files on this and other devices.

I then noticed that the pre installed demo video would not play.

After removing the micro sd card both the demo and my mp4 both played ok.