Instruct: Classify Amazon reviews into positive or negative sentiment
Query: disappointed

Amazon's service and speed are great. I ordered this thinking it would solve my problem of my car ejecting disc with "bad disc" error message. Unfortunately it didn't do the trick... problem still exists, so guess it had nothing to do with it being dirty. Actually the player just ejected this disc too.Evidently it is something more serious going on with the unit... figured it was worth a try but ended up a waste of time and money. Please note, this is not Amazon's fault....If anyone has any suggestions other than taking it in for service please post them... thanks.