Are these of reasonable quality? Media code is ProdiscF01.

Did you try search?
I never used these disc but I did a search and found a lot of info.

ProdiscF01 is ok although I wouldnt say excellent media.
716a @8x http://club.cdfreaks.com/showpost.php?p=839749&postcount=244
712a @8x http://club.cdfreaks.com/showpost.php?p=776968&postcount=60
1620a @12x http://club.cdfreaks.com/showpost.php?p=907929&postcount=101

Eidt: oops wrong forum!! should be in the Media Forum (not here in dvd media test.)