14. Warranty Revenue

Balance at
beginning of
period
$m
Warranties
Sold
$m
Revenue recognized
$m
Balance
at end
of
period
$m
2005/06 183.8 149.4 (127.8) 205.4
2006/07 205.4 168.1 (140.8) 232.7
2007/08 232.7 166.5 (152.6) 246.6

Deferred revenue represents income under extended service warranty agreements and voucher promotions.