Jaxson says: Isn't the 720 the 'downgrade' that doesn't have the card slot of the 700?   
Yes it has no card slot-so you're right it is a downgrade of the 700 


  
Jaxson says: The time slider bar thingy is your friend here.  It allows you to slide forwards and backwards as the actual fast forward/rewind stuff is slow/limited to only a few times faster etc.  

I've played around with the slider since your message & it is a lot easier now I understand its functions!!

Actually it's quite good, I think I was hitting green to display the slider instead of red. Gotta make allowances
for us oldies!