Im not sure if Line6 has more tracks you can download, but you could download someone elses home made tracks if they upload them to a site for you.  It would be nice to have a community to share home made backing tracks.  I think Line6 would run into copyright issues with this.  If anyone knows of a community to share tracks Id like to know too.

Hello,

  We don't currently offer any extra downloads in regards to backing tracks or drummers.

  I'd definitely suggest logging a feature request for this at the following link.

  http://line6.com/company/contact/productFeedback/?topic_id=3

  Has this answered your question?

  Line6Miller