Hi, I have used the 99 min's 870mb cdr's alot. I use Nero, the newest version, 5.5.10.28, have had no issues here at all. Make sure you have overburn checked off in Nero and DAO or SAO, it's the only way to be able to use them over 703mb's. You have to ensure your cdrw can handle overburn, if it can't, then your out of luck.
I have the Asus 52x24x52 CRW-5224A. I've actually burned over 870 mb's, Nero converts it for you, it can burn approx. 940mb's on them.
Which cdrw do you have? Have you updated the firmware? Check your the maker's site and see if they have updates.
This is the list that it out so far, as you can see it is not updated as of yet. Mine isn't on it and it can do more than the 99 min's without a problem.
http://www.blankcdr.co.uk/drives.htm
Good luck,
Gem
Trying to get there, but seems to be no shortcut!