One thing I would recommend is using Taiyo-Yuden CD-Rs. I have used them exclusively for years with no problems. I normally use other applications to burn my CD-Rs from AIFF files, but recently, I have been experimenting with using iTunes to convert Apple Lossless and MP3 files to audio compilation disc, still without the problems you describe.
As far as you burning in iTunes, are you using "Disc At Once" or "Track At Once" in the iTunes preferences? I also burn at the slowest speed possible to get a finished product that plays most anywhere.
As far as you burning in iTunes, are you using "Disc At Once" or "Track At Once" in the iTunes preferences? I also burn at the slowest speed possible to get a finished product that plays most anywhere.