Dude! That is NOT OK.
You've just lost all my respect for trying to mislead Newbies.
PRINCO A-GRADE wouldn't even pass kindergarten.
Use high-quality media like Taiyo Yuden, Mitsubishi, or Maxell.
Taiyo Yuden comes as "That's", or "Fuji" commonly.
Mitsubishi is commonly labelled as Verbatim Datalife PLUS (the normal datalife is usually crap).
Maxell i don't commonly buy.
Check out the media forum for a little more (detailed) information concerning media.
Remember, if Media price seems too good to be true, it usually is.
Expect to pay $0.8us for good quality media in spindles. More with cases.
It'll save heartache and trouble later.
It's a very common story to hear about people refreshing (reburning) their entire DVD collection to high quality media because 6months down the track, all their DVD's are already deteriating, making them lose information/proggies/etc.