Ironically i can buy Datasafe (datawrite) -RW cheaper, or as cheap, at places like blankdiscshop.co.uk for cheaper than the Traxdata or Choice DVD-Rs which I have, so far, found to be more reliable.

Logic dictates to me that if a DVD-RW has the capacity to be rewritten a number of times, the burn cant potentially be as deep and perhaps as long lasting, but i confess this is conjecture and I'd appreciate a view from someone who has been there and done that. If DVD-RW discs such as this are a quid or thereabouts it is a cheaper option all round, with the added bonus of being able to overwrite them in the future i'd say - so is there a known issue with long term storage of such RW discs?