Yamaha DTXTREME Owner's Manual (reference Section) - Page 90

ERROR : Memory full push [ENTER] User memory has become full. Save necessary user data to the memory card and clear unnecessary data to release the memory. ERROR : Card is write protected push [ENTER] This message will be shown if you attempt saving onto a write-protected memory card. Cancel write-protection of the memory card and retry. ERROR : Card read/write error push [ENTER] An error has occurred while the DTXTREM was reading or writing a memory card. First re-format the memory card and retry. If the message still appears when you attempt reading writing on the re-formatted card, that memory card may be broken. Replace the memory card. In any case, the data stored on the troubled card may be corrupted. ERROR : File is unknown format push [ENTER] The DTXTREME cannot recognize the specified file (file format). Check if the file is suitable for the DTXTREME and is not corrupted. ERROR : Can't edit preset song push [ENTER] This message will be shown if you attempt to load a song from the memory card or by receiving bulk data when a preset song is selected (in Drum Kit Play mode). First select a user song and then retry loading a song. ERROR : Can't edit card song push [ENTER] This message will be shown if you attempt to load a song from the memory card or by receiving bulk data when a card song is selected (in Drum Kit Play mode). First select a card song and then retry loading a song. APPENDIX 90