I have a flash drive with folders A-Z with MP3 with lyrics.works as should with lyrics on screen.when i copy a folder say A to built in storage i only get the MP3 and no lyrics on screen.what am i doing wrong as it works from flash drive .i have firmware version 1.30 and using Yamaha recommended flash drives and sometimes when playing a song from flash drive locks up and have to restart keyboard.i would have a hard time using this board out if continues if i wanted the karaoke part as sometimes the seniors want to sing.i want to free up the flash drive to use only for my registrations and voices etc. and i thought putting the karaoke on the built in storage would resolve the crashing on the flash drive issue.i was wondering if i can put mp3 cdg on the playlist and how to copy from flash drive