Cartridge/Book Errors The player said "cartridge error" when I removed the book. Have I damaged the book? No. The cartridge cannot be damaged by this action. A cartridge error may occur if the book cartridge is removed while the book is playing. The book will play normally after this has occurred. The player keeps a record that a cartridge error has occurred and this record can be reviewed when the player is returned to the library. Every time I put the cartridge in the player the machine says "Cartridge Error." This indicates a problem with the files on the cartridge or with the cartridge itself. The book should be marked as defective and returned to the library for further testing. If this occurred using a patron's USB flash drive, suggest they reformat the drive then recopy the book. Will I get "Cartridge Error" If I Remove the Book While Playing? You can also get a "Cartridge Error" announcement if a cartridge is removed while playing a book. This error is benign and may be ignored. "Cartridge Error" announcements are significant only if they are persistent and repeatable. Try another cartridge [or turn the player off and retry with the same cartridge]. If the new cartridge works, and the error persists with the original cartridge, mark the original book as defective and return it to the library. Place the book cartridge with a rubber band around it in a container and return to the library. If this occurred using a patron's USB flash drive, suggest that the patron reformat the drive and then recopy the book. The book I am reading gets to the middle of chapter 4 and says "Book Error." What does that mean? This is an error in the book itself, not in the individual cartridge. If it is a book produced by NLS, report the book number and any information about where the error occurred to NLS Quality Assurance Section. What does the audio announcement "Assistive Technology Error" mean? "Assistive Technology Error" indicates that an error occurred when a USB device was plugged into the AT port. The player was unable to recognize it as a supported device but was able to detect that a USB device has been plugged in. The book I am reading gets to the middle of chapter 4 and says "Book Error" or "Audio not available." What does that mean? This is an error in the book itself, not in the individual cartridge. Place the book cartridge in a container with a rubber band around it and return it to the library. Librarians: If it is a book produced by NLS, report the book number and any information about where the error occurred to NLS Quality Assurance Section. What does the audio announcement "Power Error" mean? "Power Errors" announcements indicate that there is a problem with the battery pack. A critical fault occurred with attempting to recharge the battery. The battery pack may have faulty cells or the player's battery charger may have a problem. What does the audio announcement "System Error" mean? "System Error" announcements mean that the player has detected an internal error. This error is generated if a player runs out of memory or when an error writing to the flash memory has been detected during a software upgrade.