I was wondering this also, at about $17 for a cassette I wouldn't justify getting one unless they wrap at least 100 nappies...I also look all over the cassette and couldn't find any indication of how many nappies a cassette will wrap...how annoying!

Beau_9 if I were you id buy a bin with a fliptop or pedal lid, and buy nappy sacks, I got coles brand scented nappy sacks it was about $5 for 200 bags, then just put ur nappies in them then into the bin. A lot cheaper!