In Bitcoin Forum > Bitcoin > Technical Support > Bitcoin-Qt fills entire disk
grue says he was "not able to replicate with a VMWare machine (40 GB storage)".
It is perhaps because he didn't try to sync an old enough wallet.
I ran into the same problem. The %APPDATA%\Bitcoin directory is over 9GB now and still increasing.
Maybe You can try to switch to a lightweight wallet.
Storing the blockchain doesn't make sense if You aren't a miner. You won't earn money for storing lots of Satoshi dice's transactions.
And where is the problem exactly?
The blockchain is 9GB or so big so of course it will take 9GB
There is a problem if it is using 40GB
Not everyone can purchase a new computer.