According to a post made by eRajala on TheChipBoard:
This was posted in the Las Vegas Review Journal this last friday
Bellagio Redemption Notice
The Bellagio Casino and Hotel is discontinuing the following white inlay, original issue gaming chips $1, $5, $25, $100 denominations
Poker $10 and $20 denominations, Baccarat $100 denominations.
These chips may be redeemed at the Bellagio main casino cage through October 17, 2008
Here is a link to the original post, which has been copied here in it's entirety:
Extra! Bellagio Redemption Notice - Oct 17th
I have not seen the notice myself, but have no reason to believe that this information is invalid.
Not familiar with a "Redemption Notice"? Please read the sticky at the top of this Forum (Chip Identity and Value).