Amazon has tweaked its Cloud Drive and Cloud Player storage pricing to go after Apple.
The company late yesterday announced a "limited time" $20 all-you-can-store plan for music files. That's $20 per year, not month.
Free storage for all music files purchased from Amazon MP3 is still offered whether or not you purchase a storage plan.
The company also said its Cloud Player for Web has now been "optimized" for the Safari browser on iPad.
The new pricing is lower than the $25/year plan for Apple's launching-this-fall iTunes Match service. Although Apple's plan caps out at 25,000 songs, users only have to scan their music, not upload it.
This may change before Match service launch, however. AllThingsD's Peter Kafka reports that "Music sources tell me the company has been back at the negotiating table with the big music labels this summer to get the blessing for an Apple-like service".