There may be a way of resetting your player by either a combination of button presses or using a dedicated reset button. But I'm sure this would be printed in the user manual.
Oh I forgot to mention the manual. Below is a direct quote from the ' Locating the Controls' page
Below the function elucidation divides the type A is two kinds of with the type of B. If inconvenient understand please.
As you can see the manual is a treasure in itself
I had hoped that copious amounts of alcohol may have helped me to understand it, but to no avail