ive just got one on ebay not recieved it yet though.. . i think that 20 Gig would only give you about 10 hrs of recording as it states elsewhere 30 mins per Gig( although i dont know if you can set the quality a bit lower to give more space )
http://www.vwlowen.co.uk/vestel/digihome.htm has a fair bit of info .
stu420
March 2008