"Search API" (affiliate resources) provides previewURL, but not 90 seconds?

Question

The "Search API" (affiliate resources; http://www.apple.com/itunes/affiliates/resources/documentation/itunes-store-web- service-search-api.html) provides previewURL to access a song preview, but this preview is 30 seconds, even though Apple has moved to 90 second previews for most songs (if they are longer than 2:30).  How can we get access to the 90 second previews so we can effectively sell the song (30 seconds not being long enough, as indicated by Apple's change to 90...)

Answer 1

FYI, this question was answered by Apple's iTunes Global Affiliate Program Manager, Ted Hosmann, in another forum.  He wrote:
“30 sec song previews are all that is available outside the store - the iTunes store reserves the 90 sec preview for users in the store.”
You can guess my reaction...  Ok, I'll tell you anyway .  As affiliates, we're trying to promote Apple products, in this case songs, so that we can send a customer to the iTunes store and earn a nickel (and so Apple can earn five nickels).  Apple has determined that 90-second previews are the best way to promote and sell a song, but won't give us access to that tool?