Since my Fuji germany cd-r's still scan better as my TY's when it comes on the higher as 16x burned ones.
Yep there is quite some yellowing (not so much as that batch of AOD disc's I have)
Good but turning yellow so far:
FUJI, AOD, Verbatim Datalife PLus Printable(The whiter ones are actually the degrading ones ) , sony printable (Taiyo Yuden (this one is not only turning slowly yellow but is also showing black dots !)
BAd and turning yellow:
Platinum (RITEK),Imation (CMC), EMTEC(CMC/MBIL), MMORE (??), That's write (lead data, Ritek) ,PHilips (Ritek)
Maxell (MPO) (not tested yet)
Sony (lead data with sony atip) - Minor signs of degradation but these could be through the handling of the disc actually.