can this spray do any good for cds and dvds?
http://riverproaudio.co.uk/items.asp?Cc=PROTECTIONSPRAY&Bc=
Protect your printed CD’s with specially formulated River CD Protection Spray. Available in 400ml cans with a specially designed nozzle to give equal disc coverage. River’s protection spray finishes inkjet discs to a professional standard with a high gloss waterproof finish. Yeild per can is dependent on how much spray is used per disc.