Mona1963, you should have installed software like AnyDVD or DVD CSS+Region Free to make your drive region free without having to use up any of the 5 changes quota.
If you don't use software like AnyDVD, you will be locked at the last region once you have used up all 5 changes.
You could't have stayed as "none" because you need a region in order to play DVD-Video in software like PowerDVD or WinDVD or even when you shrink it in DVD Shrink. You could, however, have stayed as "none" if you only feed your drive with data discs or region-free DVD-Video discs.
I would suggest AnyDVD. It is not expensive consider that you will have lifetime upgrade+support. It doesn't only remove region lock, it also removes many other protections like Sony ARccOS. If you make backups of your DVDs a lot, then it would be a good investment. CDFreaks members can also get some discount, I think.
Another way might be using a modified firmware (if any), which will void your drive's warranty. Not recommended.
If you don't want to pay for AnyDVD and don't want to use modified firmware, stay at Region 2 and try not to play other region DVDs. If you often play or make backups of Region 1 discs, you might get a cheap DVD-ROM drive and set it to Region 1.