Copy2dvd burns iso disc

for some reason, I cannot burn any + or - discs in my nec 2500a using copy2dvd. This just started. Been using the dvdshrink and copy2dvd version If I put in a dvd+rw it will work fine,(plays in all players) I have upgraded my nec software to 1.07. No help. Why would I need to update programs that have worked fine for about 9 months. Could there be another software causing problem? I recently downloaded “fabdvd” anyone know if this is an issue thanks inadvance