Okay. I'm sick of hearing about this problem on every newsgroup/list on the Internet. I guess no developer is perfect! Would it be so hard to test a small piece of film in the developer before you used it?!? Come on guys! This oxidation hassle seems like a small price to pay for the performance of XTOL.(posted 8580 days ago)BTW, Kodak no longer recommends going greater than 1:1. Infact they claim 1:1 is better than at full strength.