Only displaying the top 5 tracks in your recent tracks list? Want to get your number 1 album for the last week? You can request a version of the feed that limits the number of items returned. This can save a lot of bandwidth and load time.

Each feed is capable of limiting the number of items  returned. To do this, you need to change the file name in your request to reflect the limit you wish to impose. The format is [filename]_[number].xml. We currently limit the total number of items returned in any feed to 10, so you can request a limit between 1 and 9. For the full feed, simply request the standard file. For example, here are all of the options for my weekly tracks feed:

Full feed: http://zenradar.roblogic.net/service/1.0/user/roblogic/weeklytrackchart.xml
Top 9: http://zenradar.roblogic.net/service/1.0/user/roblogic/weeklytrackchart_9.xml
Top 8: http://zenradar.roblogic.net/service/1.0/user/roblogic/weeklytrackchart_8.xml
Top 7: http://zenradar.roblogic.net/service/1.0/user/roblogic/weeklytrackchart_7.xml
Top 6: http://zenradar.roblogic.net/service/1.0/user/roblogic/weeklytrackchart_6.xml
Top 5: http://zenradar.roblogic.net/service/1.0/user/roblogic/weeklytrackchart_5.xml
Top 4: http://zenradar.roblogic.net/service/1.0/user/roblogic/weeklytrackchart_4.xml
Top 3: http://zenradar.roblogic.net/service/1.0/user/roblogic/weeklytrackchart_3.xml
Top 2: http://zenradar.roblogic.net/service/1.0/user/roblogic/weeklytrackchart_2.xml
Number 1: http://zenradar.roblogic.net/service/1.0/user/roblogic/weeklytrackchart_1.xml