At Amazon, buy one select music CD, DVD, vinyl, or cassette and get a $1 Amazon MP3 credit for free. Plus, Amazon Prime members receive free shipping with no minimum purchase required. (Non-members can spend $25 or more to get free shipping; otherwise it starts at $2.98.) That's one of the best Amazon MP3 offers we've seen in recent months. Deal ends March 31. Notable CDs:

• Dirty Dancing: Original Soundtrack on CD for 70 cents
• Fugees' The Score on CD for 70 cents
• Love Actually: Original Soundtrack on CD for $1.30
• Etta James' 20th Century Masters: The Best Of Etta James on CD (pictured) for $4.99
• see all eligible music CDs, DVDs, and more at Amazon

Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months. (Note that currently there's a waitlist for Amazon Mom.)