Dont know why my burner wont read cd-r's?

vbimport

#1

hello, i have a samsung ts-h552b burner and allof a sudden it will not read any cd-r, whether they are already previously burned or blank. the wierd thing is that it does read my blank dvd’s. i really would appreciate it if someone can help me figure this out.

 thanks for your time,

        BOSSBALLIN