If you have an experience to using the mini disc are display "Read Error" or "Rec Error". This is a topic to help you can solve a problem. If you using the disc with damage recorder to write or erase the data; you're found display "Read Error" or "Rec Error" after. You can't use the disc for any application with "MD" or "MD LP" recorder. Solve a problem with the Hi-MD recorder, after insert the disc in Hi-MD are display "Read Error" or "Rec Error" enter menu >> edit >> erase >> erase all and confirm, wait for the recorder write system file. After process your disc is "Blankdisc" display. You can use the disc as the new disc. Good Luck.