Walmart made an aggressive move against Amazon and Apple today by re-launching its DRM free music store and offering song downloads at a discounted price. Many tracks will still be offered at the original 94 cent price point, but certain “Top 25” songs will go for a mere 74 cents, which makes the new Walmart store the least expensive alternative.

This compares favorably against the 89 cent minimum of Amazon MP3 and iTunes’ fixed 99 cent price. Walmart is offering one free song per week and a free download with every CD bought in its stores or online. Also, in a long overdue move, the Walmart store finally works with Firefox, Safari and IE running on Mac, Linux or Windows.