Why does iTunes on my MacBook Pro not remember/save edited info about CDs? It does on my G4.

I haven't used iTunes in awhile to play CDs. Lately though it is not remembering CD info I put into iTunes. I have been using iTunes since the late 90s. I have always been able to edit info for ANY CD I play on iTunes and that computer would remember that info. Lately my MacBook Pro isn't remembering this info. I am able to edit CDs on my G4 Powerbok and it is remembering the info. (The G4 is using 10.4.11 and iTunes 9.2.1 (5). I am using 10.6.8 and iTunes 10.6.1 (7) on the MBP.) This used to work on the MBP but I haven't dealt with CDs in 6 months or so so I don't know more closley when this behavior changed.)

I've had a go-rounds with Apple Care. Some say I have to import each track for iTunes to remember any edits on that track. I tried that today and that appears to be how things work now. That was not the case up until now. Has iTunes changed how it works?

I realize that iTunes will read file names on the CD if they are burned into the CD. I used Toast for some recent CDs I burned on the MBP awhile ago and voila, those files names are appearing whern I pop the CD in. I cannot edit them so that iTunes remembers them though unless I import whatever track I wanted to edit the info from. OK. That's a step backwards but OK. (I realize I am not editing the info on the CD itself. Once a CD is burned that's impossible, I would only be editing the info that iTunes has about it...) Most of the CDs I have burned do not have track titles as file names.

I know about the CD Info.cidb file. That is where info that I add manually (and info that Gracenote adds, which I also can edit...) gets saved. In the past I could edit ANY CD, regardless of where it came from, and that info would be saved in that file. That is not happening now.

I have moved the CD Info.cidb file to my desktop and edited some info. ITunes is NOT creating a new CD Info.cidb file.

So, has anything changed with iTunes or is there something else going on here? It could be a third-party app or an OS problem.

Thanks for any help.

Cheers,

John L

PS Apple Care is looking into this some more and will call me back next Thursday if not before then. My fingers are crossed that will have some info that is helpful. If I now have to import a track so that I can edit it (and save that info) on a CD, well, so be it but it doesn't seem to be a step forward...

PPS For some reason, Apple put this under the iTunes Store. I would have put it under just iTunes. I forget the page where I asked the title of this question (which has since been edited). It then brought me to this particular forum. I would have moved it if I could...