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Rent a Movie - Get $1 MP3 Credit
You can rent Season 24 Preview [HD]
You have to redeem the credit by January 31, 2015.
It takes about 10 minutes before your email notifying you of the credit comes.
Check Your Amazon MP3 Balance Here
You can download Jewish themed music like Miami Boys Choir, Mordechai Ben David, Moshav Band, Dveykus
Every couple of months Amazon gives away some MP3 credits so make a list of songs you want to download eventually and download them over time.